function BrowserCenter(divName) {
	var winWidth;
	var winHeight;
	var contentWidth = 780;			//width of content of site - this will not change
	var centeredLeft;				//left pixel location to center main content div
	
	if (isIE) {
		winWidth = document.body.offsetWidth - 35;
	}
	else if (isNS) {
		winWidth = window.innerWidth;
	}
	
	//determine new centered left location
	centeredLeft = (winWidth - contentWidth) / 2;
	
	//if new centered location is zero default set it to 30 pixels
	if (centeredLeft < 20) {
		centeredLeft = 20;
	}
	
	//move main content div on page to center of page based on browser height and width and show it
	//div is hidden until move occurs so that weird shifting isnt viewable
	if (isHighBrowser) {
		document.getElementById(divName).style.left = centeredLeft;
		document.getElementById(divName).style.visibility = "visible";
	}
	else if (isLowIEBrowser) {
		document.all[divName].style.pixelLeft = centeredLeft;
		document.all[divName].style.visibility = "visible";
	}
	else if (isLowNSBrowser) {
		document.layers[divName].left = centeredLeft;
		document.layers[divName].visibility = "show";
	}
	
	//alert("Width: " + winWidth + " Height: " + winHeight);
}