function Cogent()
{
	
}

Cogent.prototype.switchClass = function(element, class_name, lock_state) {
	var lockChanged = false;

	if (typeof(lock_state) != "undefined" && element != null) {
		element.classLock = lock_state;
		lockChanged = true;
	}

	if (element != null && (lockChanged || !element.classLock)) {
		element.oldClassName = element.className;
		element.className = class_name;
	}
};

Cogent.prototype.restoreClass = function(element) {
	if (element != null && element.oldClassName && !element.classLock) {
		element.className = element.oldClassName;
		element.oldClassName = null;
	}
};

Cogent.prototype.restoreAndSwitchClass = function(element, class_name) {
	if (element != null && !element.classLock) {
		this.restoreClass(element);
		this.switchClass(element, class_name);
	}
};

var cogent = new Cogent();

var onloads = new Array();
function bodyOnLoad() 
{
	for ( var i = 0 ; i < onloads.length ; i++ )
    	onloads[i]();
}