var	flower_on = new Image();
var	flower_off = new Image();
function changeImage(par)
{
	if (document.images && (preloadFlag == true))
	{
		if(par.substring(par.length - 2) == "_o")
			document.getElementById(par.substring(0, par.length - 2)).src = flower_on.src;
		else
			document.getElementById(par).src = flower_off.src;
	}
}

var preloadFlag = false;
function preloadImages()
{
	if (document.images)
	{
		flower_on.src = "images/hover_flower.gif";
		flower_off.src = "images/hover_flower_blank.gif";
		preloadFlag = true;
	}
}