function getUrlParameter( name ){
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return "";
else
return results[1];
}
if the URL is http://www.foo.com/index.html?bob=123&frank=321&tom=213#top
then you can read parameter value of frank by
var valueOfFrank = getUrlParameter('frank');
Original article from : http://www.netlobo.com/url_query_string_javascript.html
Saturday, March 27, 2010
Tuesday, March 23, 2010
Changing td (or table) background image to another from JavaScript
<html>
<head>
<style>
#Good {
background-repeat: no-repeat;
background-position: center center;
background-image: url(images/image40.gif);
}
</style>
<script>
<!--
function changeImage() {
newImage = "url(images/image41.gif)";
document.getElementById('Good').style.backgroundIm age = newImage;
}
//-->
</script>
</head>
<body>
<table>
<tr>
<td id="Good"><br>Hopefully there is a nice picture behind me :P</td>
</tr>
<tr>
<td><button onClick="changeImage()">Click Me</button><td>
</table>
</body>
</html>
Substring ( part of a string ) JavaScript
var str = 'im feeling ?? ';
from = 3;
t0 = 10;
str.substring(from, to);
from = 3;
t0 = 10;
str.substring(from, to);
Sample Code Mouse Coordinates - JavaScript
function checkwhere(e) {
if (document.layers){
xCoord = e.x;
yCoord = e.y;
}
else if (document.all){
xCoord = event.clientX;
yCoord = event.clientY;
}
else if (document.getElementById){
xCoord = e.clientX;
yCoord = e.clientY;
}
if (shipSize>0){
document.getElementById('movingShips').style.zIndex = -1;
document.getElementById('movingShips').style.top = yCoord-10+'px';
document.getElementById('movingShips').style.left = xCoord-10+'px';
document.getElementById('movingShips').style.position = 'absolute';
}
document.getElementById('divCoord').value = "X= "+ xCoord + " Y= " + yCoord;
}
document.onmousemove = checkwhere; // Calling the Mouse Coordinate Fantion
How to Disable the Submit Button
How to Disable the Submit Button using JavaScript
onclick="this.disabled=true"
eg:
onclick="this.disabled=true"
eg:
<button onclick="setShips(5); this.disabled="true"">The Great Ship</button>
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