if (document.getElementById)
	{
		dom = true;
	}
	else
	{
		dom = false;
	}
																		
	function hide(layer_name)
	{
		if (dom)
		{
			document.getElementById(layer_name).style.visibility='hidden';
		}
		else
		{
			document.layers[layer_name].visibility='hide';
		}
	}
	
	function show(layer_name)
	{
		if (dom)
		{
			document.getElementById(layer_name).style.left=xMousePos+10;
			document.getElementById(layer_name).style.top=yMousePos;
			document.getElementById(layer_name).style.visibility='visible';
		}
		else
		{
			document.layers[layer_name].left=xMousePos+10;
			document.layers[layer_name].top= yMousePos;
			document.layers[layer_name].visibility='show';
		}
	}
																		
	if (document.layers)
	{ // Netscape
		document.captureEvents(Event.MOUSEMOVE);
		document.onmousemove = captureMousePosition;
	} 
	else if (document.all) 
	{ // Internet Explorer
		document.onmousemove = captureMousePosition;
	}
	else if (document.getElementById)
	{ // Netcsape 6
		document.onmousemove = captureMousePosition;
	}
	// Global variables
	var xMousePos = 0; // Horizontal position of the mouse on the screen
	var yMousePos = 0; // Vertical position of the mouse on the screen
																		
	function captureMousePosition(e)
	{
		if (document.layers) //Netscape 4
		{
			xMousePos = e.pageX;
			yMousePos = e.pageY;
		}
		else if (document.all)  //IE
		{
			xMousePos = window.event.x+document.body.scrollLeft;
			yMousePos = window.event.y+document.body.scrollTop;
		}
		else if (document.getElementById)  // Netscape 6
		{
			xMousePos = e.pageX;
			yMousePos = e.pageY;
		}
	}

	function purchase(form)
	{
		if(form.zoominfo.checked)
		{
			form.item.value= form.zoominfo_item.value;
		}
		else
		{
			//alert('not checked');
			form.item.value= form.normal_item.value;
		}
	}
	function toggleZoomInfo(form)
	{
		form.zoominfo.checked= ! form.zoominfo.checked;
	}