var OnloadFunction = Class.create();
OnloadFunction.prototype = {
	initialize : function(func) {
		this.func = func;
	},
	getFunc : function() {
		return this.func;
	}
};
var OnloadFunctions = Class.create();
OnloadFunctions.prototype = {
	initialize : function() {
		this.last = 0;
		this.functions = new Array();
	},
	getFunctionAt : function(index) {
		return this.functions[index];
	},
	appendFunction : function(func) {
		this.functions[this.last] = func;
		this.last++;
	},
	getLength : function() {
		return this.last;
	},
	iterator : function() {
		return new OnloadFunctionIterator(this);
	}
}
var OnloadFunctionIterator = Class.create();
OnloadFunctionIterator.prototype = {
	initialize : function(functions) {
		this.functions = functions;
		this.index = 0;
	},
	hasNext : function () {
		return this.index < this.functions.getLength();
	},
	next : function() {
		return this.functions.getFunctionAt(this.index++);
	}
}
var onloadFunctions = new OnloadFunctions();
function multipleOnload () {
	var it = onloadFunctions.iterator();
	while (it.hasNext()){
		var func = it.next();
		func.func();
	}
}
window.onload = multipleOnload;