function checksaveposturl(url) {
	if(isEmpty(url,"Can't save empty field.")) {
		return false;
	}
	else {
		return true;
	}
}
function saveposturl() {	
	var url=document.getElementById("url-input");
	if(checksaveposturl(url)==true) {		
		//var str='../pages/wp-admin.php?act=setposturl&url='+url.value;
		window.location="../pages/wp-admin.php?act=setposturl&url="+url.value;
	}
}