function showCallyou(){
		var html = '<iframe src="/index.php?action=callyou" width="100%" height="100%" scrolling="no" frameborder="0" allowtransparency="true" style="margin-top:60px"></iframe>';
		var objBody = document.getElementsByTagName("body").item(0);
		var objOverlay = document.createElement("div");
		var arrayPageSize = getPageSize();
		objOverlay.setAttribute('id','callyou');
		objOverlay.style.display = 'block';
		objOverlay.style.width = arrayPageSize[0];
		objOverlay.style.height = arrayPageSize[1];	
		objOverlay.innerHTML = html;
		objOverlay.onclick = function() { hideCallyou(); }
		objBody.appendChild(objOverlay);
		pageTracker._trackEvent('callYou', 'opened');
		$('html, body').animate({scrollTop:0}, 'fast');
}
function hideCallyou(){
		pageTracker._trackEvent('callYou', 'closed');
		var r = document.getElementById('callyou');
		r.parentNode.removeChild(r)
}
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	
//	console.log(self.innerWidth);
//	console.log(document.documentElement.clientWidth);

	if (self.innerHeight) {	// all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth; 
		} else {
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

//	console.log("xScroll " + xScroll)
//	console.log("windowWidth " + windowWidth)

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = xScroll;		
	} else {
		pageWidth = windowWidth;
	}
//	console.log("pageWidth " + pageWidth)

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}