function switchLayer(id){
	var layerObj=$(id);
	if(layerObj.style.display=='block'){
		layerObj.style.display='none';
	}else{
		layerObj.style.display='block';
	}
}

function showLayer(id){
	$(id).style.display='block';
}

function hiddenLayer(id){
	$(id).style.display='none';
}

function sendUrl(url){
	window.location.href=attachRand(url);
}

function attachRand(url){
	if(url.indexOf("?")>=0){
		url=url+"&coco="+getRandom();
	}else{
		url=url+"?coco="+getRandom();
	}
	return url;
}

function getRandom(){
	return Math.round(Math.random()*1000);
}

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

function cUrl()
{
	return this.location.href;
}

function vtEmail()
{
	var _reg="w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*";
}

function vtUrl()
{
	var reg="http://([w-]+.)+[w-]+(/[w-./?%&=]*)?";
}