function changeHead(element, type){
	//window.alert(element);
	if(type == 'over'){
		document.getElementById(element).src = '_images/' + element + '_sel.gif';
	}
	if(type == 'out'){
		document.getElementById(element).src = '_images/' + element + '.gif';
	}
}

function ShowEffect(element){

	new Effect.Appear(element, 
   	{duration:1, from:0, to:1.0});

}
var elm = "";
function HideEffect(element){
	elm = element;
	new Effect.Appear(element, 
   	{duration:1, from:1.0, to:0});
   
   setTimeout('timer()',1100);
   

}

function timer(){
$(elm).style.display = 'none';
}