student Box Office: Java Script

Nov 10, 2011

How to clear the session when the user closes a window

11:00 PM vikram reddy 1 comment

Use the code,

<script type="text/javascript">
function window.onbeforeunload()
{
    var xmlHttp;
    try
    {
        // Firefox, Opera 8.0+, Safari
        xmlHttp=new XMLHttpRequest();
    }
    catch (e)
    {
        // Internet Explorer
    try
    {
        xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e)
    {
        try
        {
            xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch (e)
        {
            alert("Your browser does not support AJAX!");
            return false;
        }
    }
    if(event.clientX>document.body.clientWidth&&event.clientY<0||event.altKey)
    {
        xmlhttp.open("GET","exit.aspx",false);
        xmlhttp.send();
    }
 }
</script>

http://forums.asp.net/p/1237752/2255401.aspx

How to get browser screen settings and apply it to page controls

11:00 PM vikram reddy No comments

You can use the JavaScript, suppose the control type is <image>, see the code below:

<html>
<body>
<input onclick="resizeImage()"/>
<img src="http://www.microsoft.com/library/toolbar/3.0/images/banners/ms_masthead_ltr.gif"  id="Img1"  />
<script language="JavaScript">
    var winWidth = 0;
    var winHeight = 0;
    function resizeImage(){
    var img=document.getElementById("testImage")
    if (window.innerWidth)
           winWidth = window.innerWidth;
     else if ((document.body) && (document.body.clientWidth))
           winWidth = document.body.clientWidth;
     if (window.innerHeight)
           winHeight = window.innerHeight;
     else if ((document.body) && (document.body.clientHeight))
           winHeight = document.body.clientHeight;  
     if (document.documentElement  && document.documentElement.clientHeight && 
                                          document.documentElement.clientWidth)
     {
         winHeight = document.documentElement.clientHeight;
         winWidth = document.documentElement.clientWidth;
     }
     img.width= winHeight;
     img.width= winWidth;
    }
</script>
</body>
</html>