/*Manage Content Scroll*/
var windowWidth=0;
function getWindowWidth(){
	if (typeof(window.innerWidth)=='number') {
		clientWidth=window.innerWidth;
		//alert("Gecko / webkit :" + clientWidth);
		addScroll();	
	}

	else if( document.documentElement && ( document.documentElement.clientWidth ) ) {
		//alert(""+navigator.appVersion);
		var version = 999; // we assume a sane browser

                if (navigator.appVersion.indexOf("MSIE") != -1){
                        version = parseFloat(navigator.appVersion.split("MSIE")[1]);
                        //alert("IE version "+version);
                        if ( version>=7)  {
                                clientWidth=document.documentElement.clientWidth;
                                addScroll();
                        }
                }
	}
	
		return windowWidth;
	}
	
function addScroll(){
	if (clientWidth < 980){
		document.getElementById('contentHeader').style.position = "absolute";
		
		if (window.pageYOffset)	{
			document.getElementById('contentHeader').style.top = window.pageYOffset + "px";
		}
		else {
			document.getElementById('contentHeader').style.top = document.documentElement.scrollTop + "px";
		}
	}
	
	if (clientWidth > 980){
		document.getElementById('contentHeader').style.position = "fixed";
		document.getElementById('contentHeader').style.top = "0px";
	}
}


addLoadListener(getWindowWidth);
window.onresize = getWindowWidth;
window.onscroll = getWindowWidth;