// Open a customizable popup window
function popup(url) {
	properties = "top=0,left=0,resizable=yes, toolbar=no, scrollbars=yes, menubar=no, location=no, statusbar=no"
	properties += ",width=" + screen.width + ",height=" + screen.height;
	win = window.open(url,'',properties);
}


// Open Centered Popup
var win = null;
function NewWindow(mypage,myname,w,h,scroll){
    LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
    TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
    settings =
    'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
    win = window.open(mypage,myname,settings)
}