function getWindowHeight() {
    var windowHeight = 0;
    if (typeof(window.innerHeight) == 'number') {
	windowHeight = window.innerHeight;
    }
    else {
	if (document.documentElement && document.documentElement.clientHeight) {
	    windowHeight = document.documentElement.clientHeight;
	}
	else {
	    if (document.body && document.body.clientHeight) {
		windowHeight = document.body.clientHeight;
	    }
	}
    }
    return windowHeight;
}
function setContainer() {
    if (document.getElementById) {
	var windowHeight = getWindowHeight();
	if (windowHeight > 0) {
	    var conEle = document.getElementById('BodyBox');
	    var headerEle = document.getElementById('masthead');
	    var menuEle = document.getElementById('tabs');
            var footerEle = document.getElementById('footer');
					
	    if ( ! headerEle ) {
		//  alert("no Header");
		headerH = 0;
	    } else {
		headerH = headerEle.offsetHeight + menuEle.offsetHeight;
	    }
					
	    height = windowHeight - footerEle.offsetHeight -headerH - 25 ;
            conEle.style.height = height + "px";
	    //   alert(windowHeight + " "+height +" "+headerH +" " +footerEle.offsetHeight);
	}
    }
}
window.onload = function() {
    setContainer();
}
window.onresize = function() {
	setContainer();
}