function openShutThem(a){
if(document.getElementById("soliddiscs").style.display!="none")
{
$("soliddiscs").slideUp()
}
if(document.getElementById("floatingdiscs").style.display!="none")
{
$("floatingdiscs").slideUp()
}
if(document.getElementById("w-disc").style.display!="none")
{
$("w-disc").slideUp()
}
if(document.getElementById("organicbrakepads").style.display!="none")
{
$("organicbrakepads").slideUp()
}
if(document.getElementById("sinteredbrakepads").style.display!="none")
{
$("sinteredbrakepads").slideUp()
}
if(document.getElementById("exjot-sprockets").style.display!="none")
{
$("exjot-sprockets").slideUp()
}
if(document.getElementById("exjot-chains").style.display!="none")
{
$("exjot-chains").slideUp()
}
if(document.getElementById(a).style.display=="none")
{
$(document.getElementById(a)).slideDown()
}

}
function setOpacity(a,b){if(b=="low"){document.getElementById(a+"-img").style.opacity=0.5;document.getElementById(a+"-img").style.filter="alpha(opacity=50)";document.getElementById(a+"-title").style.opacity=0.5;document.getElementById(a+"-title").style.filter="alpha(opacity=50)"}else{document.getElementById(a+"-img").style.opacity=1;document.getElementById(a+"-img").style.filter="alpha(opacity=100)";document.getElementById(a+"-title").style.opacity=1;document.getElementById(a+"-title").style.filter="alpha(opacity=100)"}};


function addToCart(prefix)
{
	product_id = $F(prefix);
    var qty = 1;//$('#qty'+productId).val();
    qty = qty * 1;
    if (qty > 0)
    {
	    new Ajax.Request('ajax_add_to_cart.php', {
		  method: 'POST', 
		  parameters: {
			product_id: product_id, quantity: qty
		  }
		}
	    );
	}else
	{
		alert("Please select a quantity.");
		//$("#qty"+productId).focus();
	}
}