function OpenWindow(url,wx,wy){
	x = (screen.width  - wx) / 4 + 200;
	y = (screen.height - wy) / 4 + 100;
	newWin_t1 = window.open(url,"mini","scrollbars=1,left="+x+",top="+y+",width="+wx+",height="+wy);
	newWin_t1.focus();
}