function RollOver(sObject, sImage, sImageOver)
{	
	this.SetUp = function()
	{
		var oImage = document.getElementById(sObject);
		oImage.onmouseover = this.RollIn;
		oImage.onmouseout = this.RollOut;
	}
	
	this.RollIn = function()
	{
		document.getElementById(sObject).src = sImageOver;
	}
	
	this.RollOut = function()
	{
		document.getElementById(sObject).src = sImage;
	}
	
	this.SetUp();
}