// Browsercheck
function browserCheck() {
	var agt = navigator.userAgent.toLowerCase();
	this.ie4 = (document.all) ? true : false;
	this.ns4 = (document.layers) ? true : false;
	this.dom2 = (document.getElementById) ? true : false;
	this.ie5 = (this.ie4 && this.dom2) ? true : false;
	this.ns6 = (!this.ie4 && this.dom2) ? true : false;
	this.mac = (agt.indexOf('mac') != -1) ? true : false;
}
var is = new browserCheck();

// PopUp

function browser()		// onLoad nicht vergessen!

 {

    var nPosX;		// Variablen für windowCenter
    var nPosY;

if (is.ns4)

      {

        // Der Netscape-Browser wird verwendet

        var x = window.open ('ns4.php','test');
		x.focus();
      }

   else

      {

        // Der Microsoft-Browser wird verwendet

    	nPosX = Math.ceil( (screen.width - 786 ) / 2 );
	    nPosY = Math.ceil( (screen.height - 500 ) / 2 );

        var y = window.open ('http://www.mediagenten.de','media','width=786,height=500,resizable=no,scrollbars=no,top='+nPosY+',left='+nPosX);
		y.focus();

      }
 }

function resizeWindow(){
	window.moveTo(0,0);
	window.resizeTo( screen.availWidth, screen.availHeight );
}


// Browsercheck 2
if (navigator.appName.indexOf("Netscape") > -1 && 
	navigator.appVersion.substr(0,1) <= "4")
 	parent.location.href="ns4.php";