var Obef = 'photo0';
function om(n){
	if(n == Obef){ return; }
	if(document.getElementById){
		document.getElementById(Obef).style.display = "none";
	}

	Obef = n;
	if(document.getElementById){
		document.getElementById(n).style.display = "block";
	}

}



function helpOn(e,help){

		var helpTag = document.getElementById(help);
		helpTag.style.display = "block";

		var x;
		var y;
		if (navigator.appName.charAt(0)=="M"){
			x = event.x + document.body.scrollLeft- 120;
			y = event.y + document.body.scrollTop- 70;
		}else{
			x = e.pageX- 120;
			y = e.pageY- 70;
		}

		helpTag.style.left = x + 'px';
		helpTag.style.top  = y + 'px';
}

function helpOff(help){
		var helpTag = document.getElementById(help);
		helpTag.style.display = "none";
}