var popup1;
var height=460;
var width=790;
var left=0;
var top=0;
function linkpop(filename){
popup = window.open(filename, "","height="+height+",width="+width+",top="+top+",left="+left+",location=no,menubar=no,resizable=yes,scrollbars=yes,status=no,titlebar=yes,toolbar=no,directories=no");
}