function Pop_master(winurl,winname,nWidth,nHeight) {
		w = (nWidth);
		h = (nHeight);
		x = Math.round(7*(screen.width-nWidth)/10);
		y = Math.round(3*(screen.height-nHeight)/5);
		newWin = window.open(winurl,winname,'width='+w+', height='+h+',top='+y+',left='+x+',toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,');
}
function maxWindow() {
window.moveTo(0,0);
window.resizeTo(screen.availWidth,screen.availHeight);
}