var last=-1;
function schiebj(pos,def) {
    if (document.getElementById) {
	if (last==-1) last=def;
	var x1=document.getElementById("t"+last);
        if (x1==null) return;
	x1.style.backgroundPosition="0px 50px";
	last=pos
	var x2=document.getElementById("t"+pos);
        if (x2==null) return;
	x2.style.backgroundPosition="0px 27px";
    }
}

var vlast=-1;
function schiebw(nach) {
    if (document.getElementById) {
        if (vlast==-1) vlast="0";
	var x1=document.getElementById("vm"+vlast);
        if (x1==null) return;
	x1.style.backgroundPosition="2px 70px";
        vlast=nach;
	var x2=document.getElementById("vm"+nach);
        if (x2==null) return;
	x2.style.backgroundPosition="2px 3px";
    }
}

function xeinblenden(start) {
    x2=document.body.clientHeight;
    if (x2==0) {
	x1=document.getElementById("left");
	if (x1==null) return;
	x2=x1.clientHeight;
    }
//alert("x2 = "+x2);
    if (x2>780) {
	x3=document.getElementById("hidden");
	if (x3!=null) x3.style.display="block";
	x4=document.getElementById("link");
	if (x4!=null) x4.href=x4.href.replace(/=.*/,"="+start);
    }
}

function einblenden(start) {
    setTimeout("xeinblenden("+start+")",10);
}