JavaScript - Change Anchor Href Url

<a class="display" href="test.php?test1=textfield1&test2=textfield2">test</a>

<script type="text/javascript">

if (location.href.match(/folder/)) {

document.getElementById("div-layer").style.display="block";

}

</script>

<form name="redirect">
<center>
<font face="Arial"><b>You will be redirected to the script in<br><br>
<form>
<input type="text" size="3" name="redirect2">
</form>
seconds</b></font>
</center>

<script>
<!--

/*

*/

//change below target URL to your own
var targetURL="http://myurl.com" 
// tried #done/samepage.htm as also samepage.htm/#done
//change the second to start counting down from
var countdownfrom=6


var currentsecond=document.redirect.redirect2.value=countdownfrom+1
function countredirect(){
if (currentsecond!=1){
currentsecond-=1
document.redirect.redirect2.value=currentsecond
}
else{
window.location=targetURL
return
}
setTimeout("countredirect()",1000)
}

countredirect()
//-->
</script>

 var globvar = {
anchor: document.createElement("A")
} 

 globvar.anchor.setAttribute("href","javascript:keyb_change()");
globvar.anchor.setAttribute("onclick","javascript:blur()");
globvar.anchor.setAttribute("id","switch");
...
globvar.paragraph.appendChild(globvar.anchor); 

<fieldset > <legend>Attachment</legend>
            <table id="attachment" style="height: 50px;" width="200" border="0">
                <th width="19%">Title</th>
                <th width="26%">File</th>
                <th width="41%">Description</th>
                <th width="6%">Upload</th>
                <th width="6%">More File</th>
                <tr>
                    <td><input name="title" type="text" value="- none -" size="33" maxlength="50"></td>
                    <td><input name="filepath" type="file" size="33"></td>
                    <td><input name="description" type="text" value="- none -" size="60" maxlength="200"></td>
                    <td><input name="upload" type="button" value=" Upload " onclick="upload(this)"> </td>
                    <td><div align="center">
                            <input onclick="addMoreFile()" type="button" value="+">
                        </div></td>
                </tr>
            </table>
            <!-- end Attachment --> </fieldset>

var attRow;

function upload(obj){

	// obtain the table pointer
	var attTable = document.getElementById('attachment');
	
	// post file into the jsp file
	
	// changing the image
	// get parent pointer of this element
	var par = obj.parentNode;
	
	var loImage = document.createElement('img');
	loImage.setAttribute('src', 'images/loading1.gif');
	
	par.innerHTML = '';
	par.appendChild(loImage);
		
	// create the removal link
	var text = document.createTextNode('remove');
	
	var liRem = document.createElement('a');
	liRem.setAttribute('href','javascript:removeFile(this)');
	liRem.appendChild(text);
	
	par.innerHTML = '';
	par.appendChild(liRem);
	
}

function removeFile(obj){
	
	// post fileid 
	
	// change the image
	
}

function addMoreFile(){
	
	// create fully file upload row
	// consist of two text elements, file element, and 1 button.  
	var nFileTitle = document.createElement('input');
	nFileTitle.setAttribute('name','title');
	nFileTitle.setAttribute('type','text');
	nFileTitle.setAttribute('size', '33');
	nFileTitle.setAttribute('value','- none -');
	nFileTitle.setAttribute('maxlength','50');
	
	var nFilePath = document.createElement('input');
	nFilePath.setAttribute('name', 'filepath');
	nFilePath.setAttribute('type', 'file');
	nFilePath.setAttribute('size', '33');
	
	var nDesc = document.createElement('input');
	nDesc.setAttribute('name', 'description');
	nDesc.setAttribute('type', 'text');
	nDesc.setAttribute('value','- none -');
	nDesc.setAttribute('size', '60');
	nDesc.setAttribute('maxlength', '200');
	
	
	var nUpButton = document.createElement('input');
	nUpButton.setAttribute('name', 'upload');
	nUpButton.setAttribute('type', 'button');
	nUpButton.setAttribute('value', ' Upload ');
	nUpButton.setAttribute('onclick', 'upload(this)');
	
	// empty element
	var ksg = document.createTextNode(' ');
	
	// obtain the table pointer
	var attTable = document.getElementById('attachment');
	attRow = attTable.rows.length;
	alert(attRow);
	
	var nextRow = attTable.insertRow(attRow);
	var ceL = nextRow.insertCell(0);
	
	ceL.appendChild(nFileTitle);
	
	ceL = nextRow.insertCell(1);
	
	ceL.appendChild(nFilePath);
	
	ceL = nextRow.insertCell(2);
	
	ceL.appendChild(nDesc);
	
	ceL = nextRow.insertCell(3);
	
	ceL.appendChild(nUpButton);
	
	ceL = nextRow.insertCell(4);
	
	ceL.appendChild(ksg);
	
}

function removeFile(obj){
	
	// post fileid 
	
	// change the image back
	// get parent pointer of this element
	var par = obj.parentNode;
	
	var loImage = document.createElement('img');
	loImage.setAttribute('src', 'images/loading1.gif');

	
}

		<script type="text/javascript" src="jquery.js"></script> 
		<script> 
		function goToByScroll(id){
     			$('html,body').animate({scrollTop: $("#"+id).offset().top},'slow');
		}
		</script> 
	</head> 
	<body> 
	<ul> 
		<li><a href="javascript:void(0)" onClick="goToByScroll('contact')">Go to anchor 1</a></li> 
	</ul>

<li onmouseover="location='http://www.google.com'">Text</li>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<script type="text/javascript">
	window.onload = function(){
		document.getElementById('test').addEventListener('mouseover',function(e){ alert("mouseover"); }, false);
	}
</script>
</head>
<body>
<a href="#" id="test">mouseover</a>
</body>
</html>

echo '<tr>
    <td valign="bottom" colspan="2" align="center">
        <input id="delete_button" class="button" type="submit" value="Attach Text" onclick="return( confirm( this.form ) );" />
	</td>
</tr>';

<script type="text/javascript">
				$(document).ready(function() {
				$("a").fancybox();
			});
	</script>

<script type="text/javascript">

function goToAnchor() {
location.href = "myPage.html#myAnchor";
}

</script>