trackThis = function( url, xreferer )
{
    if( xreferer ) {
        url += '&seoreferer='+escape(xreferer);
 	  }
	var trackingImage= new Image();
	trackingImage.src= url;
};

calcHeight = function( the_iframe ) 
{
	if( !the_iframe || the_iframe == null )
		return;
   
   if( the_iframe.contentWindow )
   	the_iframe.style.height = the_iframe.contentWindow.document.body.scrollHeight;
   else
   	the_iframe.style.height = the_iframe.contentDocument.body.offsetHeight;
};

gotoNextPage = function( currentPageNumber )
{
	var currPage= document.getElementById("ratingpage"+currentPageNumber);
	var nextPage= document.getElementById("ratingpage"+(currentPageNumber+1));
	currPage.style.display="none";
	nextPage.style.display="block";
};

gotoPrevPage = function( currentPageNumber )
{
	var currPage= document.getElementById("ratingpage"+currentPageNumber);
	var prevPage= document.getElementById("ratingpage"+(currentPageNumber-1));
	currPage.style.display="none";
	prevPage.style.display="block";
};