// Determine wich browser is used
		var nn4 = (document.layers) ? true : false ;
		var ie = (document.all) ? true : false ;
		var dom = (document.getElementById && !document.all) ? true : false ;
	
	// Chooses the correct command to get an elemet depending on browser
	function pizzor_browser(layer)
	{
			
		if(nn4)
			{ return document.layers[layer];}
		else if (ie)
			{ return document.all[layer];}
		else
			{ return document.getElementById(layer);}
	}
	
	
	//Handles the visibility of the filter layer
	function pizzor_show_filter()
	{
		layer=pizzor_browser('pizzor_filter');
		if(nn4)
		{
			if(layer.visibility == "visible")
				{ layer.visibility="hidden"; }
			else
				{ layer.style.visibility="visible";}
		}
		else
		{
			if(layer.style.visibility =="visible")
				{layer.style.visibility="hidden";}
			else
				{layer.style.visibility="visible";}
		}
	}
	
	// MouseOver Script for the checkbutton images
	function pizzor_mouseOver(image)
	{
		if(image.src.substr(image.src.lastIndexOf('/')+1,7)=="checked")			//Checks wich image is currently in use
			{ image.src="/images/checked_focus.gif";}
		else if(image.src.substr(image.src.lastIndexOf('/')+1,7)=="crossed")
			{image.src="/images/crossed_focus.gif";}
		else
			{ image.src="/images/unchecked_focus.gif";}
	}
	
	// MouseOut Script for the checkbutton images
	function pizzor_mouseOut(image)
	{
		if (image.src.substr(image.src.lastIndexOf('/')+1,7)=="checked")		//Checks wich image is currently in use
			{image.src="/images/checked.gif";}
		else if(image.src.substr(image.src.lastIndexOf('/')+1,7)=="crossed")
			{image.src="/images/crossed.gif";}
		else
			{image.src="/images/unchecked.gif";}
	}
 
	//Handles the event that the checkbutton images is clicked
	function pizzor_click(image)
	{
		var input= pizzor_browser("Input_"+image.id);		// Gets the belongin input object
		if(input.value=='checked')
		{
			if(image.id.substr(0,10)=="ingredient")			//If the object is an ingredient change it to crossed
			{
				input.value='crossed';
				image.src="/images/crossed_focus.gif";
			}
			else											//If it is a "search among" change it to unchecked
			{
				input.value='unchecked';
				image.src="/images/unchecked_focus.gif";
			}
		}
		else if(input.value=="crossed")
		{
			input.value='unchecked';
			image.src="/images/unchecked_focus.gif";
		}
		else
		{
			input.value='checked';
			image.src="/images/checked_focus.gif";
		}
	}
	
	// Resets all the checkbutton images
	function pizzor_resetfunc()
	{
		for (i=0;i<37;i++)
		{
			var im=pizzor_browser("ingredient"+i);
			im.src="images/unchecked.gif";
			var input=pizzor_browser("Input_ingredient"+i);
			input.value="unchecked";
		}
		
		//Resets the "search among" to checked
		for (i=0;i<4;i++)
		{
			var im=pizzor_browser("type"+i);
			im.src="images/checked.gif";
			var input=pizzor_browser("Input_type"+i);
			input.value="checked";
		}
		
	}