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JavaScript - Changing Image Size In Percentage. - Not Relative To Browser
Hi. Sort of new to Javascript.
I am implementing a zoom in feature, but actually tricking the user as a full screen image is simply being stretched. I plan to apply it to several pages, and don't really fancy working out the pixels for each. I believe that if you simply put width: 150% height 150% it will change the image size relative to the browser. I don't want that, I want it relative to the original image size. Could I do sort of height*1.5 or something? How would I write that if so? Thanks! Code: <script>
$('#in').click(function() {
$('#drag img').animate({
width: '150%',
height: '150%',
}, 5000, function() {
// Animation complete.
});
});
</script>
Similar TutorialsI'm still struggling for a solution here. I have a background image that auto-resizes based on browser window / screen resolution. I want my top header menu, which requires links, to act in the same way and be in roughly the same position/size based on browser window. Is this possible? In the sample below, the image is just part of the background image to give you an idea of the look I am trying to duplicate. Is there a Javascript out there that will help me or will I be stuck having to rework my design? http://www.uberbotjones.com/sanny/test.html This site is really driving me crazy. I need to find the position of an element on the page relative to the browser window. Its part of a popup calendar script (and no, they don't want to change it so please don't suggest jQuery date-picker etc) The script uses these functions http://www.mattkruse.com/javascript/...on/source.html to find the position of the anchor to pop up the calendar next to it. Now the client wants to make the calendar fixed when the user scrolls so that it always stays on screen. The most graceful solution is using css position:fixed (I'm aware it doesn't work in IE6 - that's not a problem) I've been using the getAnchorWindowPosition function to get the coordinates but the numbers its giving are wrong (to different degrees depending on the browser) It was only 200px out in the Y axis in Firefox but in IE7&8 its off the screen. I've tried googling for an answer but I can't seem to find a workable solution, mostly I've been coming up with absolute position scripts or 'just use jquery' answers. I was playing around with some onmouseover/onmouseout and setting innerHTML to various strings depending on what has been mousedover/out. The DIV for the innerHTML was above the items being onmouseovered/out and because the strings sent were of different lengths, sometimes a one or two line wrap would happen and everything below it would be resized accordingly creating a horrible effect. For reference, what is a good way to approach building pages which are immune to this effect? Hi, this will probably make a bit more sense it you read my topic in the HTML section (http://www.codingforums.com/showthread.php?t=57093) where I had a problem with two floating divs, in the end the solution was to give both on my floating divs a fixed width. Now, the menu bar div will always be 150 pixels and i wanted the remaing width to be taken up by the main content div. This script here seems to work very wel in firefox but in ie I get scrollbars. This seems to be because firefox returns the actuall width of the viewing 'frame' while IE seems to give the width of the window itself. PHP Code: <script type="text/javascript"> onload = function getBrowserWidth() { if (!document.all) { var width = document.body.offsetWidth; var newWidth = width - 150; document.getElementById('main').style.width = newWidth; } } </script> After a bit of playing with it I found that IE seems to return in offsetWidth about 19 more pixels than the actual size of the viewable 'frame', can anyone confirm this? Now, when the browser window is resized I want the width of the element to be resized as well, which meant I had to add to the body tag <body onresize="getBrowserWidth();"> is there a better way to attach the function to when the window is resized? I am not sure how Opera and Safari return offsetWidth and if they do it like mozilla, or need special values like IE does to make it fit. Thanks for all of your help with any of these 'mini' questions Hello, First I want to say I have no experience with coding, I develop eLearning via Adobe Captivate. We recently implemented a new LMS from PeopleSoft. This new LMS is launching the eLearning in a small browser window probably 500x400 without the ability to resize this. I am wondering first, if it's possible to edit the htm/js file that Captivate produces, and if anyone is aware of code that could then be entered into the htm/js file to resize the browser upon launch? Thanks! Im coding an internet browser and when I put it in full screen the web browser part is staying the same size as it was on small screen. How do I make it so when its on small screen it is the size of the window but when its on big screen its the size of the whole screen? Hi, I'm creating web application that picks out a randomly chosen image from google, and displays it in the browser window every time it is refreshed. What I'm struggling with is that I want the browser window to resize automatically to exactly fit the image displayed. I know how to resize a browser window, but I want it done dynamically. Can anyone help me with this? Hi Friends, I need to select browser option dynamically using javascript for handling cookies , i.e., in need select checkbox "override automatic cookie handling" checkbox dynamically. Kindly help me friends how to select this checkbox dynamically. Tools - -> Internet Options --> Privacy (Tab) --> Advance (Button) --> Override automatic cookie handling . Thanks in Advance, Siva. I want to change browser setting using Java Script. Any help Please. Thanks in advance. --sohan panwar i have been trying all sorts of things, but falling short... i'm trying to set up a way to detect a user's browser size and then call a specific background image accordingly... say (for example) that BKGD1.jpg is for users who have browsers that are 1280x1024 and higher; BKGD2.jpg is for users who have browsers that are smaller than 1280x1024... i'm even open to an option that only displays a background image if the browser is (as in the example above) 1280x1024, and just a background color if the browser is smaller than that... i don't know... i am totally lost on this one... any help would be amazing!!! thank you... Hi everyone Dont know if it can be done but.... I am using the percentage calculator Code: <SCRIPT language=JavaScript>
<!--
//Script by Tom Richardson Jr.
//If you have any questions, e-mail me at gooftroop@geocities.com
//or visit mt web site at http://home.rmci.net/gooftroop
//For this script and more, visit http://javascriptkit.com
function perc1() {
a = document.form1.a.value/100;
b = a*document.form1.b.value;
document.form1.total1.value = b
}
function perc2() {
a = document.form1.c.value;
b = document.form1.d.value;
c = a/b;
d = c*100;
document.form1.total2.value = d
}
//-->
</SCRIPT>
<FORM name=form1>
<TABLE cellSpacing=1 cellPadding=1 border=1>
<TBODY>
<TR>
<TD align=middle colSpan=3><B><FONT size=4>Percentage Calculator</FONT></B>
</TD>
<TR>
<TD>What is <INPUT size=5 name=a> % of <INPUT size=5 name=b>?</TD>
<TD>Answer: <INPUT maxLength=40 size=5 name=total1></TD>
<TD><INPUT onclick=perc1() type=button value=Calculate></TD>
<TR>
<TD><INPUT size=5 name=c> is what percent of <INPUT size=5
name=d>?</TD>
<TD>Answer: <INPUT size=5 name=total2> %</TD>
<TD><INPUT onclick=perc2() type=button value=Calculate></TD>
<TR>
<TD align=middle
colSpan=3><INPUT type=reset value=Reset></TD></TR></TBODY></TABLE></FORM>
Does anyone know how I could change the answer to a percentage bar instead of the numeric answer ? or change the colour of the answer to say red or green depending on the value ? Many thanks Donna i have image button i need to display image .if the size of the image button is 100*100 and image size is 50*50 .the remaining space of the image button should be empty.the image should not stretch. can any one guide me i am new to programming Thanks in advance!!! Hi Ive found out how to force another browser window to open at a certain size when a link is clicked. Here's the whole line of code including the layer, the javascript and the image, <div id="Layer6" style="position:absolute; width:10px; height:8px; z-index:6; left: 561px; top: 310px"><a href="javascript:;" onClick="MM_openBrWindow('navigation%20instructions.htm','','width=50,height=50')"><img src="images/info.gif" width="15" height="15" border="0"></a></div> How do I adapt this so I can also specify the x&y co-ordinates of the opened window relative to the window that launched it. thanks alot Masten QUESTION 1: Hello. I would like to know if this is possible with Javascript, and if yes, if someone can please provide me with the code or point me in the right direction. Let me start of by saying that this is for an eBay listing. I know that they accept basic / limited javascript and if what I am asking is possible, I hope that it can work on eBay listings. I would like to know if it's possible to determine the dimensions of an image with Javascript from an Image url, and to then resize it or not based on the the size of the image. So, let's say this is the URL: www.adomainname.com/image.jpg and let's say that image is 1400 px x 1400 px. I would first like the javascript code to detect that size. I also would like the maximum dimension for any side of the image to be 600 px. If both sides of the image are over 600 px, for both sides to be reduced proportionally to 600 px or lower. If any one side of the image is larger than 600 px, the image is to be resized to 600 px or lower. If both sides are under 600 px, the image is to not be reduced. It would also be nice if it can detect whether the image is portion or landscape based on I guess the larger side, because an image at 600 px in height might be too big, but in width might be o.k. So, in this example (the 1400 px by 1400 px), the image is to be resized to 600 px x 600 px. For an image that's 300 px x 500 px, it should remain as such. For an image that's 400 px x 700 px, it should be resized to 400 / (700 / 600) px by 600 px, which is approximately 343 px x 600 px. I have looked a bit into this and I see things being mentioned about the image being loaded first completely on the screen, or about using server side language like PHP, and so on, but like I said, keep in mind that this is for eBay, and so I am limited. Note: The part that I am most interested in is in being able to detect the size / dimensions of the image. QUESTION 2: On a side note, does anyone know if it's possible to have a Javascript enlarging function for images, in which when one clicks on an image, it is enlarged, but either in a popup window that's smaller than the one behind it, and possibly centered, or by making the background go dark and then bringing up the enlarged image (is the latter done with Javascript; I have seen this effect for a while now and have always wondered.) I came across your forums here and it looked like a great place to get some help, and help is exactly what I need! I have been struggling with this javascript that changes an image and its corresponding useMap. For reference: - All images are the same size and located in the same directory, except the main map image - All images are preloaded (I did this just in case it was an image problem) - The page works fine in Firefox, and fine in IE until it crashes - http://www.forthecode.com/imagemap/untitled.htm The Problem: - When clicking on a state in the main image, the state image appears, if you then click on the "return to the overview" it returns to the overview image then promptly crashes IE within 1-2 seconds. - This even happens in a completely blank page (no other content) Exceptions: - Clicking on the state Mississippi does not cause this problem (you can go back and forth with Mississippi without problem) - Tennessee, Ohio, Arkansas, Illonois crash as soon as their state map comes up! The Javascript function itself: Code: <script language="Javascript">
function changemap(vari){
var vari;
var stoptime;
if(vari=="regionview"){
document.regionmap.src = "/images/branchmap2.jpg";
stoptime = setTimeout( function changemap1(){ document.regionmap.useMap="#Map"; clearTimeout(stoptime);} , 300);
}
else{
document.regionmap.src = "/images/states/" + vari + ".jpg";
stoptime = setTimeout( function changemap2(){ document.regionmap.useMap="#"+vari; clearTimeout(stoptime);} , 300);
}
}
</script>
The image tag and image maps: Code: <img src="images/branchmap2.jpg" name="regionmap" usemap="#Map" border="0">
<map name="Map">
<area shape="rect" coords="144,14,189,91" href="#" onClick="javascript: changemap('indiana');" alt="Indiana" title="Indiana">
<area shape="poly" coords="139,91,137,104,132,108,132,115,128,118,160,110,167,109,189,91" href="#" onClick="javascript: changemap('indiana');" alt="Indiana" title="Indiana">
<area shape="poly" coords="230,138,123,139,121,131,127,122,140,117,153,115,170,107,191,90,194,85,202,87,213,90,221,91,225,90,232,92,232,100,238,107,242,114,245,119" href="#" onClick="javascript: changemap('kentucky');" alt="Kentucky" title="Kentucky">
<area shape="poly" coords="153,177,143,244,144,280,127,287,115,286,113,272,83,271,78,264,86,249,93,239,89,228,88,212,90,202,97,192,105,178" href="#" onMouseUp="javascript: changemap('mississippi');" alt="Mississippi" title="Mississippi">
<area shape="poly" coords="87,226,17,227,16,212,7,212,3,128,108,130,107,142,113,142,120,128,121,131,121,141" href="#" onClick="javascript: changemap('arkansas');" alt="Arkansas" title="Arkansas">
<area shape="poly" coords="246,118,255,98,272,87,284,64,283,11,265,17,258,25,241,31,217,18,187,18,190,81,218,90,224,87,232,92,235,100" href="#" onClick="javascript: changemap('ohio');" alt="Ohio" title="Ohio">
<area shape="poly" coords="124,116,128,121,120,128,111,140,109,129,23,127,21,70,15,60,2,33,74,33,79,39,78,51,95,76,103,77,100,87,101,95,108,103,113,111,114,118" href="#" onClick="javascript: changemap('missouri');" alt="Missouri" title="Missouri">
<area shape="poly" coords="129,117,131,109,136,104,138,91,144,80,142,19,137,4,99,3,102,14,94,22,87,22,90,34,81,45,78,50,94,75,105,77,103,88,104,97,112,107,116,114" href="#" onClick="javascript: changemap('illonois');" alt="Illonois" title="Illonois">
<area shape="poly" coords="204,177,109,176,123,139,249,139" href="#" onMouseUp="javascript: changemap('tennessee');" alt="Tennessee" title="Tennessee">
</map>
<map name="arkansas">
<area shape="rect" coords="240,135,284,163" href="/branches/westmemphis.php" alt="West Memphis" title="West Memphis">
<area shape="circle" coords="209,143,7" href="/branches/westmemphis.php" alt="West Memphis" title="West Memphis">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="mississippi">
<area shape="rect" coords="20,177,64,191" href="/branches/jackson.php" alt="Jackson" title="Jackson">
<area shape="circle" coords="103,183,8" href="/branches/jackson.php" alt="Jackson" title="Jackson">
<area shape="rect" coords="217,198,277,214" href="/branches/hattiesburg.php" alt="Hattiesburg" title="Hattiesburg">
<area shape="circle" coords="175,208,7" href="/branches/hattiesburg.php" alt="Hattiesburg" title="Hattiesburg">
<area shape="rect" coords="222,96,279,111" href="/branches/columbus.php" alt="Columbus" title="Columbus">
<area shape="circle" coords="195,106,8" href="/branches/columbus.php" alt="Columbus" title="Columbus">
<area shape="rect" coords="222,71,261,85" href="/branches/tupelo.php" alt="Tupelo" title="Tupelo">
<area shape="circle" coords="174,84,6" href="/branches/tupelo.php" alt="Tupelo" title="Tupelo">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="missouri">
<area shape="rect" coords="195,262,243,275" href="/branches/sikeston.php" alt="Sikeston" title="Sikeston">
<area shape="circle" coords="216,199,7" href="/branches/sikeston.php" alt="Sikeston" title="Sikeston">
<area shape="rect" coords="247,173,280,186" href="/branches/ozora.php" alt="Ozora" title="Ozora">
<area shape="circle" coords="206,182,6" href="/branches/ozora.php" alt="Ozora" title="Ozora">
<area shape="rect" coords="232,158,278,169" href="/branches/sullivan.php" alt="Sullivan" title="Sullivan">
<area shape="circle" coords="194,165,7" href="/branches/sullivan.php" alt="Sullivan" title="Sullivan">
<area shape="rect" coords="228,128,275,142" href="/branches/stlouis.php" alt="St. Louis" title="St. Louis">
<area shape="circle" coords="206,137,8" href="/branches/stlouis.php" alt="St Louis" title="St Louis">
<area shape="rect" coords="198,97,258,112" href="/branches/wentzville.php" alt="Wentzville" title="Wentzville">
<area shape="circle" coords="182,130,6" href="/branches/wentzville.php" alt="Wentzville" title="Wentzville">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="kentucky">
<area shape="rect" coords="24,218,72,231" href="/branches/paducah.php" alt="Paducah" title="Paducah">
<area shape="circle" coords="46,190,6" href="/branches/paducah.php" alt="Paducah" title="Paducah">
<area shape="rect" coords="35,127,95,141" href="/branches/henderson.php" alt="Henderson" title="Henderson">
<area shape="circle" coords="63,174,7" href="/branches/henderson.php" alt="Henderson" title="Henderson">
<area shape="rect" coords="94,218,175,232" href="/branches/bowlinggreen.php" alt="Bowling Green" title="Bowling Green">
<area shape="circle" coords="127,188,6" href="/branches/bowlinggreen.php" alt="Bowling Green" title="Bowling Green">
<area shape="rect" coords="108,75,159,90" href="/branches/louisville.php" alt="Louisville" title="Louisville">
<area shape="circle" coords="144,130,7" href="/branches/louisville.php" alt="Louisville" title="Louisville">
<area shape="rect" coords="179,75,232,89" href="/branches/georgetown.php" alt="Lexington" title="Lexington">
<area shape="circle" coords="193,127,8" href="/branches/georgetown.php" alt="Lexington" title="Lexington">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="indiana">
<area shape="rect" coords="18,199,73,213" href="/branches/vincennes.php" alt="Vincennes" title="Vincennes">
<area shape="circle" coords="110,204,6" href="/branches/vincennes.php" alt="Vincennes" title="Vincennes">
<area shape="rect" coords="210,180,273,193" href="/branches/clarksville.php" alt="Clarksville" title="Clarksville">
<area shape="circle" coords="187,186,6" href="/branches/clarksville.php" alt="Clarksville" title="Clarksville">
<area shape="rect" coords="211,117,276,132" href="/branches/indianapolis.php" alt="Indianapolis" title="Indianapolis">
<area shape="circle" coords="159,124,5" href="/branches/indianapolis.php" alt="Indianapolis" title="Indianapolis">
<area shape="rect" coords="211,101,250,113" href="/branches/muncie.php" alt="Muncie" title="Muncie">
<area shape="circle" coords="178,116,7" href="/branches/muncie.php" alt="Muncie" title="Muncie">
<area shape="rect" coords="212,46,257,60" href="/branches/fremont.php" alt="Fremont" title="Fremont">
<area shape="circle" coords="185,55,7" href="/branches/fremont.php" alt="Fremont" title="Fremont">
<area shape="rect" coords="36,73,92,86" href="/branches/ftwayne.php" alt="Ft. Wayne" title="Ft. Wayne">
<area shape="circle" coords="179,79,5" href="/branches/ftwayne.php" alt="Ft. Wayne" title="Ft. Wayne">
<area shape="rect" coords="36,109,87,121" href="/branches/lafayette.php" alt="Lafayette" title="Lafayette">
<area shape="circle" coords="138,113,6" href="/branches/lafayette.php" alt="Lafayette" title="Lafayette">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="illonois">
<area shape="rect" coords="28,184,89,197" href="/branches/estlouis.php" alt="East St. Louis" title="East St. Louis">
<area shape="circle" coords="126,192,6" href="/branches/estlouis.php" alt="East St. Louis" title="East St. Louis">
<area shape="circle" coords="148,153,5" href="/branches/effingham.php" alt="Effingham" title="Effingham">
<area shape="rect" coords="218,146,273,159" href="/branches/effingham.php" alt="Effingham" title="Effingham">
<area shape="rect" coords="219,120,260,134" href="/branches/urbana.php" alt="Urbana" title="Urbana">
<area shape="circle" coords="164,130,6" href="/branches/urbana.php" alt="Urbana" title="Urbana">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="tennessee">
<area shape="rect" coords="0,199,49,213" href="/branches/memphis.php" alt="Memphis" title="Memphis">
<area shape="circle" coords="25,170,7" href="/branches/memphis.php" alt="Memphis" title="Memphis">
<area shape="rect" coords="41,80,90,94" href="/branches/jacksontn.php" alt="Jackson" title="Jackson">
<area shape="circle" coords="64,149,8" href="/branches/jacksontn.php" alt="Jackson" title="Jackson">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
<map name="ohio">
<area shape="rect" coords="49,221,105,237" href="/branches/cincinatti.php" alt="Cincinatti" title="Cincinatti">
<area shape="circle" coords="74,162,7" href="/branches/cincinatti.php" alt="Cincinatti" title="Cincinatti">
<area shape="rect" coords="6,138,46,151" href="/branches/dayton.php" alt="Dayton" title="Dayton">
<area shape="circle" coords="91,146,6" href="/branches/dayton.php" alt="Dayton" title="Dayton">
<area shape="rect" coords="130,275,283,290" href="#" onClick="javascript: changemap('regionview');" alt="Overview" title="Overview">
</map>
This is exactly how it is in my html files. I really appreciate any input, suggestions or comments you can give me. Thanks in advance! Hello, I am working on a page that has a jQuery full browser BG image and I am trying to also utilize a MooTools gallery. There seems to be some interference between the two JavaScripts as only one works (whichever one is last in order in the header of the HTML document). Links: http://www.courtneyhunt.com.au/press_bg.html http://www.courtneyhunt.com.au/press_gallery.html I am a complete novice with JavaScript so if anyone could help that would be great. Thank you in advance. Hi, So here is my problem. I have a main image that has a bunch of images (e.g., stars) on top. I place the stars in absolute positions on top of the main image. If a user resizes the brower, then the position of the main image changes, so then the stars are off position (not on top of the main image). Should I: 1) make the main image be in an absolute position? or 2) do something else such that the main image moves around if the browser is resized? but then I don't know how to re-adjust the positions of the stars on the fly. Hello, How can we calculate size of image by using javascript ? Thanks in advance I have a form that allows photos to be uploaded. I am using Perl to do this, and it works fine. Now I want to validate that the size of the image does not exceed a certain limit BEFORE it actually uploads. I can do that in Perl using something like the code below. But, I would rather do this in Javascript. I already have a routine that validates that the image file name does not contain embedded spaces. I would like to add this there. Can this be done in Javascript? Code: if ($ENV{'CONTENT_LENGTH'} > 100000) { print "SIZE EXCEEDS LIMIT!" }
Hi everyone, So I know enough to make an image change when you click on something, but not enough to do what I want to do. Code: <img name="ImageState" src="Image1.jpg" alt="Image"> <A HREF="javascript:void(0)" onclick="ImageState.src='Image1.jpg'">Link 1</A> <A HREF="javascript:void(0)" onclick="ImageState.src='Image2.jpg'">Link 2</A> <A HREF="javascript:void(0)" onclick="ImageState.src='Image3.jpg'">Link 3</A> <A HREF="javascript:void(0)" onclick="ImageState.src='Image4.jpg'">Link 4</A> <A HREF="javascript:void(0)" onclick="ImageState.src='Image5.jpg'">Link 5</A> The problem is that I want the images to only advance in the proper order. For example, if "Image2.jpg" is currently displayed, I want to make it so that only clicking on "Link 3" will advance it to "Image3.jpg" while the other links are still there but do nothing if you click on them. Can anyone tell me how to do this please? |
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