var win=null;
function NewWindow(mypage,myname,w,h,scroll,pos) {
	if(pos=="random") {
		LeftPosition =  (screen.width) ? Math.floor(Math.random()*(screen.width-w)) : 100; 
		TopPosition = (screen.height) ? Math.floor(Math.random()*((screen.height-h)-75)) : 100;}
	if(pos=="center") {
		LeftPosition = (screen.width) ? (screen.width-w)/2 : 100;
		TopPosition = (screen.height) ? (screen.height-h)/2 : 100;
	} else if((pos!="center" && pos!="random") || pos==null) {
		LeftPosition = 0;
		TopPosition = 20;
	}
	settings = 'width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
	win=window.open(mypage,myname,settings);
	win.focus();
	return false;
}

/* 
pop-up window usage:
<a href="page.htm" onclick="NewWindow(this.href,'main','800','450','no','center');return false">LINK</a>
*/