// iframe functions
	var FullPage = true;
	
	function showLayer(){
		document.getElementById("hideLayer").style.display = '';
		document.getElementById("vbLayer").style.display = '';	
		document.getElementById("vbLayer").style.top = getScrollY() + 20;	
	}
	function getScrollY() {
	  var scrOfY = 0;
	  if( typeof( window.pageYOffset ) == 'number' ) {
		scrOfY = window.pageYOffset;
	  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
		scrOfY = document.body.scrollTop;
	  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
		scrOfY = document.documentElement.scrollTop;
	  }
	  return  scrOfY ;
	}
	function closeLayer(){
		document.getElementById("hideLayer").style.display = 'none';
		document.getElementById("vbLayer").style.display = 'none';	
	}	
	function setPageSize(){
		var yScroll;	
		if (window.innerHeight && window.scrollMaxY) {	
			yScroll = window.innerHeight + window.scrollMaxY;
		} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
			yScroll = document.body.scrollHeight;
		} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
			yScroll = document.body.offsetHeight;
		}
		var windowHeight;
		if (self.innerHeight) {	// all except Explorer
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) { // other Explorers
			windowHeight = document.body.clientHeight;
		}	
		// for small pages with total height less then height of the viewport
		if(yScroll < windowHeight){
			pageHeight = windowHeight;
		} else { 
			pageHeight = yScroll;
		}
		document.getElementById("hideLayer").style.height = pageHeight;
	}