var ns4,ns6,ie4,ie5,ie6;
var nUser=navigator.userAgent;
var bname = navigator.appName;
var ver = navigator.appVersion;
var int_ver = parseInt(ver);
if (bname.indexOf("Netscape") >= 0 && int_ver == 4) ns4 = 1;/*netscape 4 +*/
if ((nUser.indexOf("Netscape") >=0) && int_ver >= 5){ns6 = 1;}/*netscape 6*/
if (nUser.indexOf('MSIE 4') >0) ie4 = 1;/*internet explorer 4*/
if (nUser.indexOf('MSIE 5') >0) ie5 = 1;/*internet explorer 5*/
if (nUser.indexOf('MSIE 6') >0) ie6 = 1;/*internet explorer 6*/

function vlaunch(file) {
	if (ie4||ie5||ie6||ns4||ns6) {
			var nWin = 'video_template.html?'+file;
			var date = new Date();
			var time = date.getSeconds();
			var viewer = "viewer"+time;
			//alert(viewer);
			nWindow = window.open(nWin, 'vvviewer', 'width=350,height=450,scrollbars=no,resizable=no,location=no,status=no');
			nWindow.focus();
			} 
		 else 
		 	{	
				alert("We\'re sorry, the CBS video player requires a version 4 broswer\nClick ok to continue to our browser download page\n Hit cancel to return");
				window.open('http://www.microsoft.com/windows/ie/download/ie55sp1.htm?FinishURL=%2Fdownloads%2Frelease%2Easp%3FReleaseID%3D25479%26redirect%3Dno', '', '');
				}
		
}