addEvent(window, 'load', initWidth);

function initWidth() {
	if ((screen.width >= 800) && (window.width >= 800)) {
		obj = document.getElementById('container');
		//obj.style.width = '78em';
	}
}

//http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
function getElementsByClassName(className, tag, elm){
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all) ? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++){
		current = elements[i];
		if(testClass.test(current.className)){
			returnElements.push(current);
		}
	}
	return returnElements;
}

//http://ejohn.org/projects/flexible-javascript-events/
function addEvent( obj, type, fn ) {
	if ( obj.attachEvent ) {
		obj['e'+type+fn] = fn;
		obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
		obj.attachEvent( 'on'+type, obj[type+fn] );
	} else
		obj.addEventListener( type, fn, false );
}

//http://snippets.dzone.com/posts/show/2630
function addClassName(objElement, strClass, blnMayAlreadyExist) {
	if (objElement.className) {
		var arrList = objElement.className.split(' ');
		if (blnMayAlreadyExist) {
			var strClassUpper = strClass.toUpperCase();
			for (var i = 0; i < arrList.length; i++) {
				if (arrList[i].toUpperCase() == strClassUpper) {
					arrList.splice(i, 1);
					i--;
				}
			}
		}
		arrList[arrList.length] = strClass;
		objElement.className = arrList.join(' ');
	} else {
		objElement.className = strClass;
	}
}

//http://snippets.dzone.com/posts/show/2630
function removeClassName(objElement, strClass) {
	if (objElement.className) {
		var arrList = objElement.className.split(' ');
		var strClassUpper = strClass.toUpperCase();
		for (var i = 0; i < arrList.length; i++) {
			if (arrList[i].toUpperCase() == strClassUpper) {
				arrList.splice(i, 1);
				i--;
			}
		}
		objElement.className = arrList.join(' ');
	}
}