function ShowError() {
var page_height = document.body.scrollHeight + 30;
document.getElementById('light').style.display='block';document.getElementById('fade').style.display='block';document.getElementById('fade').style.pixelHeight=page_height;
}
function ShowOnLoad() {
var hasitshown = checkCookie();
if (hasitshown != "yes") {
var page_height = document.body.scrollHeight + 30;
document.getElementById('onloadlight').style.display='block';document.getElementById('fade').style.display='block';document.getElementById('fade').style.pixelHeight=page_height;
} else {
}
}
function HideError() {
document.getElementById('light').style.display='none';document.getElementById('onloadlight').style.display='none';document.getElementById('fade').style.display='none';
}

function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setTime(exdate.getTime() + 3600000 + 60000);
document.cookie=c_name+ "=" +escape(value);//+ ";expires="+exdate.toGMTString();
}

/*function getCookie ( cookie_name )
{
  var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );

  if ( results )
    return ( unescape ( results[2] ) );
  else
    return null;
}*/
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() {
var hasshown=getCookie('hasshown');
	if (hasshown == "yes") {
var d = new Date();
		return "yes";
	} else {
		setCookie('hasshown','yes');
		return "no";
	}
}