var navname;
function loader(){
		if(navigator.appName.indexOf("Netscape")>=0){navname="net";}
		else if(navigator.appName.indexOf("Microsoft Internet Explorer">=0)){navname="exp";}
		window.onresize = setsize; //anstelle des navname-includes oberhalb!!
		setsize();
}
function setsize(){
		var adnum=0;
		var overalltable = (document.getElementById) ? document.getElementById('overalltable') : eval("document.all['overalltable']");
		var overalltablewidth = overalltable.width;
		switch (navname){
		case "net":
			var widthvalue=document.body.offsetWidth;
			adnum+=8;
			break;
		case "exp":
			var widthvalue=document.body.offsetWidth;
			break;
		default:
			var widthvalue=document.body.offsetWidth;
			adnum+=8;
			break;
	}
	if(widthvalue<Number(overalltablewidth)){
		if(navname=="exp"){movex=18;}
		else{movex=10;}
	}
	else{movex = (widthvalue-Number(overalltablewidth))/2+10;}
	document.getElementById("navitable").style.left=movex+adnum;
}