// JavaScript Document

function setCookie(c_name,value,expiredays)
{
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
} 

function getCookie(c_name)
{
	if (document.cookie.length>0)
	  {
	  c_start=document.cookie.indexOf(c_name + "=");
	  if (c_start!=-1)
		{
		c_start=c_start + c_name.length+1;
		c_end=document.cookie.indexOf(";",c_start);
		if (c_end==-1) c_end=document.cookie.length;
		return unescape(document.cookie.substring(c_start,c_end));
		}
	  }
	return "";
}

function checkCookie(c_name)
{
	cookie_value=getCookie(c_name);
	if (cookie_value=="") {
		return true;
	} else {
		return false;	
	}
}

function deleteCookie(c_name) {
	document.cookie = c_name +'=; expires=Thu, 01-Jan-70 00:00:01 GMT;';
}

function popupOnload(){
	if(checkCookie('POPsurvey')){
		jQuery('#survey').dialog('open');
	}
}