function trim(str){
   return str.replace(/^\s*|\s*$/g,"");
}

function winopen(url,title){
	popup=window.open(url,title,'width=100,height=100,menubar=no,scrollbars=no,toolbar=no,location=no,directories=no,resizable=no,top=20,left=50',false);
	popup.focus();
}