function setModalCookie(set) {
	var expiredate = new Date();
	document.cookie="ga_dhc_modalpersist" + "=" + ";expires=Thu, 01-Jan-1970 00:00:01 GMT;";
	expiredate.setDate(expiredate.getDate()+30);
	document.cookie="ga_dhc_modalpersist" + "=" + encodeURIComponent(set) + ";expires=" + expiredate.toGMTString();
}
function getModalCookie(){
	var hidemodal = false;
	if (document.cookie.length>0)
	{
		c_start=document.cookie.indexOf("ga_dhc_modalpersist" + "=");
		if (c_start!=-1)
		{
			c_start=c_start + "ga_dhc_modalpersist".length+1;
			c_end=document.cookie.indexOf(";",c_start);
			if (c_end==-1) c_end=document.cookie.length;
			hidemodal = decodeURIComponent(document.cookie.substring(c_start,c_end));		
		}
	}
	return hidemodal;
}