function popUp(URL,ID,w_height, w_width)
{
    eval("page" + ID + " = window.open(URL, '" + ID + "','toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width="+w_width+",height="+w_height+",left = 300,top = 200');");
}