//popup window
function popup(URL){

	if( window.name == "POP" ){
		var PopWinName = "POP2";
	}
	else{
		var PopWinName = "POP";
	}

	var PROPERTY = "scrollbars=1,toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=1,width=680,height=600";
	var PopWin = window.open(URL,PopWinName,PROPERTY);
	
	PopWin.focus();
	
}