function getWidth() {
		if(window.innerWidth)
			return window.innerWidth;
		else if(document.documentElement && document.documentElement.clientWidth)
			return document.documentElement.clientWidth;
		else return document.body.clientWidth;
	}
	
	function getHeight() {
		if(window.innerHeight)
			return window.innerHeight;
		else if(document.documentElement && document.documentElement.clientHeight)
			return document.documentElement.clientHeight;
		else return document.body.clientHeight;
	}
	
	function getScrollX() {
		if(window.pageXOffset)
			return window.pageXOffset;
		else if(document.documentElement && document.documentElement.scrollLeft)
			return document.documentElement.scrollLeft;
		else return document.body.scrollLeft;
	}
	
	function getScrollY() {
		if(window.pageYOffset)
			return window.pageYOffset;
		else if(document.documentElement && document.documentElement.scrollTop)
			return document.documentElement.scrollTop;
		else return document.body.scrollTop;
	}

	function showTestimonials(strTestimonialsHTML, pxWidth, pxHeight) {
		var objPopup = document.getElementById("testimonialsPopup");

		objPopup.innerHTML = strTestimonialsHTML;
		objPopup.style.width = pxWidth + "px";
		objPopup.style.height = pxHeight + "px";
		objPopup.style.left = ((getWidth() - pxWidth) / 2) + getScrollX() + "px";
		objPopup.style.top = ((getHeight() - pxHeight) / 2) + getScrollY() + "px";
		objPopup.style.display = "block";
		objPopup.focus();
	}
	
	function hideTestimonials() {
		document.getElementById("testimonialsPopup").style.display = "none";
	}