function openFull(URLen) {
                    var windowNamen="mainwindow";
                    var browserName=navigator.appName;
                    var operatingSystem=navigator.platform;
                    var version = parseFloat(navigator.appVersion);

		    //top.location="../index.html";

		    // Netscape check version 4.0+ on Win
		    if (browserName.indexOf("Netscape")!=-1 && version>=4.0 && operatingSystem.indexOf("Mac")!=-1)
		    {
		    window.open(URLen,windowNamen,'titlebar=no,top=0,left=0,width=' + window.screen.availWidth+',height='+window.screen.availWidth+',screenX=0,screenY=0,top=0,left=0')
		    }

		    // MSIE Mac check
		    else if (browserName.indexOf("Microsoft Internet Explorer")!=-1 && operatingSystem.indexOf("Mac")!=-1)
		    {
		    window.open(URLen,windowNamen,'titlebar=no,top=0,left=0,width=' + window.screen.availWidth+',height='+window.screen.availWidth+',screenX=0,screenY=0,top=0,left=0')
		    }

		    // Netscape Mac check
		    else if (browserName.indexOf("Netscape")!=-1 && operatingSystem.indexOf("Mac")!=-1)
		    {
		    window.open(URLen,windowNamen,'width='+screen.width+',height='+screen.height+',top=0,left=0');
		    }

		    // MSIE Windows
		    else if (browserName.indexOf("Microsoft Internet Explorer")!=-1 && operatingSystem.indexOf("Win")!=-1)
		    {
		    var win = window.open(URLen,windowNamen,'fullscreen', 'titlebar=true')
                    }

		    // Netscape Windows
		    else if (browserName.indexOf("Netscape")!=-1 && operatingSystem.indexOf("Win")!=-1)
		    {
		    window.open(URLen,windowNamen,'width='+screen.width+',height='+screen.height+',top=0,left=0');
		    }

		    else
		    {
		    window.open(URLen,windowNamen);
		    }

	     }