function coWin(url,winName){
	window.open(url,winName,'height=500,width=700,status=no,toolbar=no,status=no,menubar=no,scrollbars=yes');
}

function parentClick(url){
	opener.location.href=url;
	window.close();
}

function chgImg(url,imgname){
	document.getElementById(imgname).src = url;
}