JavaScript - Get Image Information
hi everyone,
is it possible to get information about image, or generally speaking a file using javascript??? lets say i used a browse button (input type="file") and when the user selects the file, i can get the file information - like if it were an image, then its dimensions and if possible, then the file size too... is this possible in javascript??? thanks in advance Hemal Similar TutorialsHi everyone I need to make a chrome extension that will be work like panel like on site "http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/" but in my case this panel should work on every site and be always on top of every page content. I implemented this with iform element and added div element same size as iform to the end of the body, so my panel will not hide the end of page . The problem is adding this panel to sites like gmail. in this case I cant add element to the end of page and it's hide part of content. How can I solve this problem or is there any other way to make this.
Hello. The link below is the result of a product search on a website. It displays 2 results. However, the actual results (picture & information) that are displayed on the web page are not present in the "Page Source". For example, if you search the page source for the string '860723' (which is one of the product numbers visible on the web page) it is not there. What is going on here? It looks to me like dummy images & information in the HTML are first loaded by the browser, and then that dummy info gets replaced by the real information via a javascript function. Is that what's going on? http://www.lightsamerica.com/metro/s...mber:SL9469-8; I'm trying to retrieve that information by downloading the source in my PHP program. The problem is that the information I want isn't present in the source. It stands to reason that the information is somehow being sent to the browser because I can see it... any ideas? Thanks for your time, -Scott This is what i want to do but Im not sure if it is possible i just want a push in the right direction to how to do it anyway. How would i go about displaying information on my site collected from another site its for a sports website i don't want to have to count tackles in each footy game i just want to take certain stats from another site and display them on mine is this something that can be done using JavaScript? thanks any help would be great Hi! I installed the Animated Information Bar found on http://www.javascriptkit.com/script/.../infobar.shtml Now there is a option to display the bar once per session but this isn't working... Code: infobar.setfrequency('session') //Uncomment this line to set information bar to only display once per browser session! Anyone has installed this bar and knows why this isn't working? I use IE8 greetings Jardin Holland hi, I am looking for help creating javascript auto-apearing box, which will appear when someone onmouse on the hyperlink. In the appeared box I want to show some PHP script and other text. See in my example attached Regards. Hi everyone, Hoping someone could assist me? I want information from a text filed that is submited to actually appear in a particular area of the website itself instantly - not sure if this can be achieved via java or html? EG: TEXT: Hi, my name is such and such Then for that to be submitted and to appear on the top right side of the website? Can anyone assist me? Kind Regards, Hey all, i could really use some help in making life easier if any one can help. Im gonna try my best and explain what i want but please excuse my lack of knowledge! What i want to achieve is to use one page as a template that can take information from the url and use it to produce the result i want for example if the template page is template.html ad it looked something like this: Code: <title> + title + </title> </head> <body> <a href="http://www.mywebsite.com/ + folder + / + page +">Click Here</a> </body> </html> The link to the page could look something like this: template.html?folder=football&page=united.html&title=United Scores this would result in the template page rendering as: Code: <title>United Scores</title> </head> <body> <a href="http://www.mywebsite.com/football/united.html">Click Here</a> </body> </html> If anyone can tell me how i can achieve this i would be extremely grateful. Thanks Hi Guys, I need a little bit or help with a bit of code I'm writing for a customer. I want to select some data from a database (photo names) and then show pass the information to a JavaScript to display the images on at a time moving onwhen a user click on a 'NEXT' button or back one when the click on a 'BACK' button. Does anyone have any idea on how to do this or is it something that is just no possible? How would you access information about various attributes of an element with javascript?
Hi Guys I'm trying to find a way to insert a dropdown eg: <select> <option>Volvo</option> <option>Saab</option> <option>Mercedes</option> <option>Audi</option> </select> ...place the dropdown to the left and have an information panel to the right. i.e. if a user chooses Volvo a panel to the right would appear saying eg "Volvo is a strong car" and so on for other selections eg "Audi is a fast car" if the user selects Audi in the dropdown. THANKS It appears that .html() is somehow messing up reading the contents of a div. Here is my php code which loads into the div. Code: $own_pre_selection .= "<input name='" . mysql_result($result,$i,"did") . "' value='" . mysql_result($result,$i,"did") . "' type='hidden'><span class='addremove' onclick=\"recordchecks('" . mysql_result($result,$i,"dname") . "','" . mysql_result($result,$i,"did") . "')\";><u>Remove</u></span> " . mysql_result($result,$i,"dname") . "<br>"; Here is what I see as source code after the page renders. Code: <input name='677' value='677' type='hidden'><span class='addremove' onclick="recordchecks('Heart Neoplasms','677')";><u>Remove</u></span> Heart Neoplasms<br><input name='1298' value='1298' type='hidden'><span class='addremove' onclick="recordchecks('Heart Septal Defects; Atrial','1298')";><u>Remove</u></span> Heart Septal Defects; Atrial<br></div> When I test alert() the .html() contents it appears like this. It seems to screw up the quote escape and changes \" to " ;="" after the recordchecks(). Code: <input name="677" value="677" type="hidden"><span class="addremove" onclick="recordchecks('Heart Neoplasms','677')" ;=""><u>Remove</u></span> Heart Neoplasms<br><input name="1298" value="1298" type="hidden"><span class="addremove" onclick="recordchecks('Heart Septal Defects; Atrial','1298')" ;=""><u>Remove</u></span> Heart Septal Defects; Atrial<br> So even though the source code looks perfect, if I alert() the div contents with html() it seems to get a bit garbled in the process. Any ideas? In your opinion, How the google puts its ads on the other sites? Do you think the google creates a new 'iframe' tag and puts Ads on it ? Or the google uses another ways to puts ads on sites? Please help me. With Regards.Mojtaba Hello everyone, I've got a problem while trying to fetch some informations from multiple forms in the same page. What I'm trying to do with this code is fetching informations from the multiple forms on my page and checking if the information is the information I need. If so, I take this information and add it into a javascript generated form that I submit once every form in the page have been taken care of. It's the only way I found to 'submit' multiple forms at the same time. Everything was fine until I decided to give the user the option to add more forms on the page by clicking on a button (the form is then generated by javascript and appended on the page). There seems to be a problem when checking these particular forms, the script doesn't seem to recognize the value of the radio button (wich is add_question_faq) and never ever enters in this case. Code: case "add_question_faq": alert ("pourquoi, ho, pourquoi") if (mesForms[cpt].question.value=="" || mesForms[cpt].answer.value==""){ chaineModif+="StopSendRightNow" } break; Except when the commentarised Code: //for (h=0;h<mesForms[cpt].elements.length;h++){ //alert (mesForms[cpt].elements[h].name) //} ain't commentarised. Any Idea why a simple alert changes the behavior of the function? Here's the said function: Code: function select_forms_faq(){ var chaineModif="" var mesFormsModif=new Array(); var mesForms=document.getElementsByTagName("form"); for (cpt=0;cpt<mesForms.length;cpt++){ //for (h=0;h<mesForms[cpt].elements.length;h++){ //alert (mesForms[cpt].elements[h].name) //} if (mesForms[cpt].action.length!=0 && mesForms[cpt].action.length!=undefined){ for (k=0;k<mesForms[cpt].action.length;k++){ if (mesForms[cpt].action[k].checked==true){ switch (mesForms[cpt].action[k].value){ case "delete": chaineModif+="<input type=\'text\' name=\'delete_"+mesForms[cpt].id_question.value+"\' value=\'"+mesForms[cpt].id_question.value+"\' />"; break; case "save_changes_question": chaineModif+="<input type=\'text\' name=\'update_question_faq_"+mesForms[cpt].id_question.value+"\' value=\'id"+mesForms[cpt].id_question.value+"question"+mesForms[cpt].question.value+"answer"+mesForms[cpt].answer.value+"\' />" break; case "save_changes_cat": chaineModif+="<input type=\'text\' name=\'update_cat_faq_\' value=\'id"+mesForms[cpt].id_cat.value+"category"+mesForms[cpt].cat.value+"\' />" break; case "add_question_faq": alert ("pourquoi, ho, pourquoi") if (mesForms[cpt].question.value=="" || mesForms[cpt].answer.value==""){ chaineModif+="StopSendRightNow" } break; } } } } } if (chaineModif!="" && chaineModif.indexOf("StopSendRightNow")==-1){ var formFinal=document.createElement("form") with(formFinal){ method="POST" action="" name="formFinal" id="formFinal" style.display="none" } chaineModif+="<input type=\'hidden\' name=\'submit_changes_faq\' value=\'submit_changes_faq\' />" document.getElementById("wpbody-content").appendChild(formFinal) document.getElementById("formFinal").innerHTML=chaineModif formFinal.submit(); return false } else{ return false } } Hi guys! i would like to ask for your assistance.. i am creating two template for my work.. and i would like to know what is the javascript that in one click i can copy and paste all the details from template #1 to template #2. considering that each field in template 1 will fall into the correct field in template #2.. http://img130.imageshack.us/i/25157983.jpg/ hope to hear from you soon. thanks! you may also email me at janshawn_54@yahoo.com Hi, I am not able to submit the page details in IE 6 since am getting Javascript error: "unknown name" while submitting the page. If i press submit button for second time getting javascript error "Permission Denied". I tried to submit the details in IE 7 aswell the same error occurs. But i tried to submit the page in FireFox, its worked great... submitted without any error and the details saved in the database. I dont understand why the details are not submitted through IE6. Please assist on this. rgds, Ganny. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Strict//EN"> <html> <head> <title>Student Information</title> <meta name="GENERATOR" content="Microsoft Visual Studio.NET 7.0"> <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5"> Code: <SCRIPT type="text/javascript"> <!-- function displayEntries () { var sfirst = document.frmStudentInfo.textSfirst.value; var smi = document.frmStudentInfo.textSmi.value; var slast = document.frmStudentInfo.textSlast.value; var sadd = document.frmStudentInfo.textSadd.value; var scity = document.frmStudentInfo.textScity.value; var sstate = document.frmStudenInfo.textSstate.value; var szip = document.frmStudentInfo.textSzip.value; var sphone = document.frmStudentInfo.textSphone.value; var sdob = document.frmStudentInfo.textSdob.value; window.alert('sfirst' + 'smi' + 'slast' + '\n' + 'sadd' + '\n' + 'scity' + 'sstate' + 'szip' + '\n' + 'sphone' + '\n' + 'sdob'); } //--> </SCRIPT> </head> <body> <table width="70%" align=center ID="Table1"> <tr><td><img SRC = "nwlogo.jpg" width=120 height=60></td> <td><H3>Student Information</H3></td></tr> </table> <form name="frmStudentInfo" action="ignore"> <table align="center"> <tr><td> Last Name:</td> <td><input type="text" name="txtSlast" size="20"></td> <td> </td> <td></td> </tr> <tr><td> First Name:</td> <td><input type="text" name="txtSfirst" size="20" ></td> <td> </td> <td></td> <tr><td> MI:</td> <td><input type="text" name="txtSmi" size="5" tabindex="3"><td> <td> </td> </tr> <tr><td> Address:</td> <td><input type="text" name="txtSadd" size="20" tabindex="4"></td> <td> </td> <td></td> </tr> <tr><td> City:</td> <td><input type="text" name="SCity" size="20" tabindex="5"></td> <td> </td> <td></td> </tr> <tr><td> State:</td> <td><input type="text" name="txtSstate" size="5" tabindex="6"></td> <td> </td> Code: <td><input type="button" name="cmdUpdate" value="Update" onClick="displayEntries();"></td> </tr> <tr><td> ZIP Code:</td> <td><input type="text" name="txtSzip" size="20" tabindex="7"></td> <td> </td> <td></td> </tr> <tr><td> Phone:</td> <td><input type="text" name="txtSPhone" size="20" tabindex="8"></td> <td> </td> <td></td> </td> </tr> <tr><td> Date of Birth:</td> <td><input type="text" name="txtSdob" size="20" tabindex="9"></td> <td> </td> <td></td> </tr> </table> </form> </body> </html> I'm having trouble with the pop up window. I cannot get it to pop up and I'm not sure where I have went wrong with it. I need it to pop up once the update button is clicked and contain the information that has been input into the form. Any help would be much appreciated. Attached is the code. It does open the email but does not send any information. Can someone please assist. Code: <!-- Table 2 for the Content --> <form name="orders" onsubmit="return confirmSubmit()" onreset="return window.confirm('Are you sure you want to reset your Orders.'); " action="mailto:lynette@sayorkies.co.za" method="post" enctype="text/plain"> Code: // Function to Confirm certain conditions and confirm to proceed with order function confirmSubmit() { var itemsOrdered = true; if (document.forms[2].totalExcl.value == 0 || document.forms[2].delivery.value == 0) { itemsOrdered = false; } if(itemsOrdered != true) { window.alert("You have not chosen any products to purchase or No Delivery Option selected."); return false; } var submitOrder = window.confirm("Are you sure you want to place the order?"); if(submitOrder == true) return true; return false; } // Function to calculate order value function calculateValue(orders) { var orderValue = 0; // Run through all the product fields for(var i = 0; i < orders.elements.length; ++i) { // Get the current field var formField = orders.elements[i]; // Get the fields name var formName = formField.name; // Is it a "product" field? if (formName.substring(0,4) == "prod") { // Items price extracted from name var itemPrice = parseFloat(formName.substring(formName.lastIndexOf("_") + 1)); // Get the Quantity var itemQuantity = parseInt(formField.value); // Update the OrderValue if(itemQuantity >= 0) { orderValue += itemQuantity * itemPrice; } } } // Display the totals orders.totalExcl.value = "R " + orderValue.toLocaleString(); // function to calculate VAT at 15% as required and total inclusive. function calcTotals(oValue) { var vat = oValue * .15; var totalIncluding = oValue + vat; var tDelivery = Number( orders.delivery.value.substring(2) ); var theTotalOrder = totalIncluding + tDelivery; orders.vat.value = "R " + vat.toLocaleString(); orders.totalIncl.value = "R " + totalIncluding.toLocaleString(); orders.totalOrder.value = "R " + theTotalOrder.toLocaleString(); } return calcTotals(orderValue); } I am currently using the JavaScript Light Box found on; http://www.huddletogether.com/projects/lightbox2/ I was wondering if it is possible, or easy enough to create something alike the one found on; http://www.whsmith.co.uk/Support/Hel...ffiliates.aspx when you click on; > How to become an affiliate > Complete the OMGuk.com affiliate application form. Many Thanks, Tim Can anyone help me with a little project I'm been lumbered with? I've been given the task of building a carbon offset calculator What I need to do is have a webpage on a touchscreen kiosk that allows a visitor to the client enter their name/company/email address, plus select how they travelled to the premises and their departing post code. When they submit the form, I need it to email the details to the client so they can produce a nice little certificate saying how many trees have been planted to offset the visitors journey - but I also need it to display the details on screen before resetting itself for the next Prius driving visitor to use. I've got to the stage where I can EITHER capture all the details needed and email them OR capture all the details needed and calculate the distance travelled, KGs of CO2 expended and how many trees are needed and display them. I'm having difficulty getting it to do both! Thanks in advance! Please assist, I have the following code to remember form inormation but it does not seem to work. Probably something stupid. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Contact Page</title> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="yorkie.css" type="text/css" /> <script type="text/javascript"> /* <![CDATA[ */ // Confirm resetting of forms. function confirmReset() { var resetForm = confirm("Are you sure you want to reset the form?"); if (resetForm == true) return true; return false; } // If box clicked value within disappears function Focus(element) { if (element.value == element.defaultValue) { element.value = ''; } } // If nothing typed and box onblur the default value is restored within function Blank(element) { if (element.value == '') { element.value = element.defaultValue; } } // Submission of Contact Form Verified function verifySubmission() { var retValue = true; if (document.forms[2].email.value == "Enter Email Address" || document.forms[2].firstname.value == "Enter First Name" || document.forms[2].lastname.value == "Enter Last Name" || document.forms[2].telephone.value == "Enter Contact number") { window.alert("You did not fill in one of the following required fields: First Name, Last Name, Email Address, or Telephone Number."); retValue = false; } return retValue; } // Email address verified as a valid email address function validateEmail(formObject) { var email = formObject.value; var emailCheck = /^[_\w\-]+(\.[_\w\-]+)*@[\w\-]+(\.[\w\-]+)*(\.[\D]{2,3})$/; if (emailCheck.test(email) == false) { window.alert("The e-mail address you entered does not appear to be valid."); formObject.value = formObject.defaultValue; return false; } formObject.value = email.toLowerCase(); return true; } // Telephone number verified as a valid 10 digit number with no alpha characters function verifyPhone(number) { var phone = number.value; var phoneCheck = /^(\d{10})$/; if(phoneCheck.test(phone) == false) { window.alert("The telephone number you entered does not appear to be valid."); number.value = number.defaultValue; return false; } return true; } // Show additional contact form details onclick of yes radio button function showDiv() { document.getElementById('breeders').style.visibility = 'visible'; } // Hide certain contact form info onclick of No radio button function hideDiv() { document.getElementById('breeders').style.visibility = 'hidden'; } // SAVE FORM INFORMATION FOR THE NEXT VISIT function saveSelections(frm) { var setvalue; var fieldType; var index; var formname = frm.name; // CookieExpiry in 30 days. var today = new Date(); var exp = new Date(today.getTime()+30*24*60*60*1000); var string = "formname=" + formname + "|"; var cookieName = formname; var n = frm.length; for (i = 0; i < n; i++) { e = frm[i].name; fieldValue = frm[i].value; fieldType = frm[i].type; // Radio Buttons if (fieldType == "radio") { for (x=0; x < frm.elements[e].length; x++) { if (frm.elements[e][x].checked) { index = x } } string = string + index + "\|"; } // Text, Textarea, and dropdowns if ((fieldType == "text") || (fieldType == "textarea") || (fieldType == "select")) { string = string + frm.elements[e].value + "\|"; } // Checkboxes if (fieldType == "checkbox") { if (frm.elements[e].checked==true) { var setvalue = "1"; } if (frm.elements[e].checked==false) { var setvalue = "0"; } string = string + setvalue + "\|"; } // Hidden field if (fieldType == "hidden") { string = string + frm.elements[e].value + "\|"; } } setCookie(cookieName, string, exp); } // Load Form Fields from saved cookie function loadSelections(frm) { var e; var z; var x; var cookieName; var fieldArray; var fieldValues; var fieldValue; var formname = frm.id; // Retrieve form elements from cookie and split into array. cookieName = formname; fieldValues = getCookie(cookieName); fieldArray = fieldValues.split("\|"); var n = frm.length; for (i = 0; i < n; i++) { e = frm[i].name; z = i; z++; var fieldType = frm[i].type; var fieldValue = fieldArray[z]; // Radio Buttons if (fieldType == "radio") { x = fieldValue; frm.elements[e][x].checked = true; } // Text, Textarea, and dropdowns if ((fieldType == "text") || (fieldType == "textarea") || (fieldType == "select")) { frm.elements[e].value = fieldValue; } // Checkboxes if (fieldType == "checkbox") { var fld_checkbox = fieldValue; if (fld_checkbox == "1") { frm.elements[e].checked = true; } } // Hidden fields if (fieldType == "hidden") { frm.elements[e].value = fieldValue; } } } // COOKIE FUNCTIONS function setCookie(name, value, expires) { document.cookie= name + "=" + escape(value) + ((expires) ? "; expires=" + expires.toGMTString() : ""); } function getCookie(name) { var dc = document.cookie; var prefix = name + "="; var begin = dc.indexOf("; " + prefix); if (begin == -1) { begin = dc.indexOf(prefix); if (begin != 0) return null; } else { begin += 2; } var end = document.cookie.indexOf(";", begin); if (end == -1) { end = dc.length; } return unescape(dc.substring(begin + prefix.length, end)); } /* ]]> */ </script> </head> <body class="contact" onload="var begin=setInterval('changeBanner()',9000); currentClock(); currentDate(); document.getElementById('breeders').style.visibility = 'hidden'; " onunload="saveSelections(document.forms[0])"> <table width="92%"> <form action="mailto:lynette@sayorkies.co.za, subject=Contact Form" method="post" enctype="text/plain" onsubmit="return verifySubmission()" onreset="return confirmReset();"> <table class="center" cellpadding="5" border="1"> <!-- This enters a horizontal line --> <tr><td><hr /></td></tr> <!-- This is for the personal information --> <tr><td><strong>Tell us who you a </strong></td></tr> <tr><td><input type="text" name="firstname" size="25" maxlength="35" value="Enter First Name" onfocus="Focus(this);" onblur="Blank(this);" /> * <input type="text" name="lastname" style="margin-left: 52px;" size="25" maxlength="35" value="Enter Last Name" onfocus="Focus(this);" onblur="Blank(this);" /> *</td></tr> <!-- This is for the contact information --> <tr><td><strong>Your Contact details:</strong></td></tr> <tr><td><input type="text" name="email" size="30" maxlength="60" value="Enter Email Address" onfocus="Focus(this);" onblur="Blank(this); validateEmail(this)" /> * <input type="text" name="telephone" style="margin-left: 20px;" size="20" maxlength="10" value="Enter Contact number" onfocus="Focus(this);" onblur="Blank(this); verifyPhone(this)" /> * </td></tr> <!-- This is where you enter your message also select what type of message--> <tr><td><strong>Your Message:</strong></td></tr> <tr><td align="left">What is your message about?<br /> <input type="radio" name="type" value="compliment" /> Compliment <input type="radio" name="type" value="complaint" /> Complaint <input type="radio" name="type" value="general" checked="checked" /> General <input type="radio" name="type" value="enquiry" /> Enquiry <input type="radio" name="type" value="feedback" /> Feedback</td></tr> <tr><td align="center"><textarea name="message" rows="6" cols="45" onfocus="Focus(this);" onblur="Blank(this)">Enter your message here...</textarea></td></tr> <!-- Additional information --> <tr><td align="left">Are you looking to purchase a Yorkie puppy?<br /> <input type="radio" name="purchase" value="yes" /> Yes <input type="radio" name="purchase" value="no" checked="checked" /> No</td></tr> <tr><td align="left">Do you own a Yorkie?<br /> <input type="radio" name="owner" value="yes" onclick="showDiv()" /> Yes <input type="radio" name="owner" value="no" checked="checked" onclick="hideDiv()" /> No<br /> <!-- If answer is no above the below questions are hidden, if yes then they appear --> <div id="breeders"> How many? <select name="qnty" size="1"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5+</option></select> Are you a breeder? <input type="radio" name="breeder" value="yes" /> Yes <input type="radio" name="breeder" value="no" checked="checked" /> No</div></td></tr> <!-- Subscriptions --> <tr><td align="left">Do you wish to subscribe to the following?<br /> <input type="checkbox" name="subscribe" value="letter" checked="checked" /> Monthly Newsletter<br /> <input type="checkbox" name="subscribe" value="pups" /> Notification of a new litter<br /> <input type="checkbox" name="subscribe" value="updates" /> Notification of site updates<br /> <input type="checkbox" name="subscribe" value="register" /> Registrations</td></tr> <!-- Add a picture file --> <tr><td align="left">Upload your favourite Yorkie photo for the Picture of the Month.<br /> <input type="file" name="upload" accept="image/gif, image/jpeg" size="30" style="margin-left: 15px; margin-top:5px;" /></td></tr> <!-- This enters a horizontal line --> <tr><td><hr /></td></tr> <tr><td align="center">Required fields marked with *</td></tr> <!-- Buttons to clear the form or to submit the form --> <tr><td align="center"><input type="reset" value="Clear the Form" /> <input type="submit" value="Send your message" /></td></tr> </table></form<script type="text/javascript">loadSelections(document.forms[0]);</script> </body> </html> Console Error: Unable to get value of the property 'split': object is null or undefined for this line: Code: fieldArray = fieldValues.split("\|"); I am hitting a brick wall, dont know what to do? |