function open_win(link,name,w,h,scroll,pos){
	var popup_win=null;
	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;
	} else if(pos=="center") {
		LeftPosition=(screen.width)?(screen.width-w)/2:100;
		TopPosition=(screen.height)?(screen.height-h)/2:100;
	} else if(pos=="left") {
		LeftPosition=(screen.width)?(screen.width-w)/2:100;
		TopPosition=(screen.height)?(screen.height-h)/2:100;
	} else if(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';

	if (!popup_win || popup_win.closed) {
		popup_win=window.open(link,name,settings);
	} else {
		popup_win=location.href=link;
	}

	if (popup_win.focus) { 
		popup_win.focus();
	}
}