nav0norm = new Image();     
	nav0activ = new Image();     	  
			 
	nav0norm.src = "images/cart1.gif";   
	nav0activ.src = "images/cart2.gif";  
			
	function reAct(imgName, imgType) 
	{
		imgNew = eval(imgName + imgType + ".src");
		document[imgName].src = imgNew;
	}
			 
   function resetInput(name, default_txt) 
	{ 
		if (name.value == "") 
		{ 
		   name.value = default_txt; 
		} 
	} 
	
	function clearInput (name, default_txt) 
	{ 
	   if (name.value == default_txt) 
		{
		   name.value = ""; 
		}
	}