function hide(divname) { 
		document.getElementById(divname).style.display = 'none'; 
	} 
	
	function show(divname) { 
		document.getElementById(divname).style.display = ''; 
	} 

function ShowLoading() { //DOM

	if (document.getElementById){
		document.getElementById('prepage').style.visibility='visible';
	}else{
		if (document.layers){ //NS4
			document.prepage.visibility = 'visible';
		}
		else { //IE4
		document.all.prepage.style.visibility = 'visible';
		}
	}
}