function openPopup(wlink, wname, x, y) {
		
	var newJsWin = window.open(wlink, 
wname,'width='+x+',height='+y+',toolbar=0,directories=0,menubar=0,status=0,resizable=1,location=0,scrollbars=no,copyhistory=0,top=100,left=200');
	if (newJsWin.opener == '') {
		newJsWin.opener = window;	
	}
	
	return false;
}

function jsCloseRefresh() {
	window.opener.location=window.opener.location;
	window.close();
}


function CheckAll(chkAllBox) {
	var i=0;
	while (chkAllBox.form[i]!=null) {
		if (chkAllBox.form[i].type=="checkbox") {
			chkAllBox.form[i].checked=chkAllBox.checked;		
		}
		i++;
	}	
}

function CheckIsAny(chkAny) {
	var i=0;
	while (chkAny[i]!=null) {
		if (chkAny[i].type=="checkbox" && chkAny[i].name=="friend_id" && chkAny[i].checked) {
			return true;
		}
		i++;
	}
	alert('You should select at least one friend');
	return false;
}