var curleft=curtop=0;
function findPos(b){
    var a=0;
    a=b.offsetHeight;
    curleft=curtop=0;
    var c="";
    if(b.offsetParent){
        do{
            curleft+=b.offsetLeft;
            curtop+=b.offsetTop
        }while(b=b.offsetParent)
    }
    if(a==0){
        a=42
    }
    curtop+=a;
}