// JavaScript Document

function ajaxFunction(getVals, targetId)
{
	//alert("in");
	var browserType;
	var xmlHttp;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	xmlHttp.onreadystatechange=function()
	{
		if(xmlHttp.readyState==4 && targetId == "cart")
		{
			//window.location = "index.php?p=cart";
			setTimeout("window.location.reload(true)", 30);
			return;
		}

		if(xmlHttp.readyState==4 && targetId != "none" && targetId != "cart")
		{
			document.getElementById(targetId).innerHTML = xmlHttp.responseText;	
		}
	}
	xmlHttp.open("GET", "functions/ajaxWork.php?"+getVals, true);
	xmlHttp.send(null);
}











function addToCart(id)
{	
	var qty = document.getElementById(id).value;

	if(qty != "" && qty != null && IsNumeric(qty))
	{		
		ajaxFunction("qty="+qty+"&id="+id, 'cart');
	}
	else
	{
		alert("Please enter a valid quantity!");	
		document.getElementById(id).value = "";
		document.getElementById(id).focus();
	}	
}







function updateCart(id)
{
	var qty = document.getElementById(id).value;
	//alert(id+" "+qty);
	if(qty == null || qty == "")
	{
		qty = 0;
	}
	if(IsNumeric(qty))
	{		
		ajaxFunction("qty="+qty+"&id="+id, "none");		
		return;
	}
	else
	{
		alert("Please enter a valid quantity!");
		document.getElementById(id).value = "";		
	}
}







function saveFreightRate(obj)
{

	var rate = obj.options[obj.selectedIndex].value;

	var loc = obj.options[obj.selectedIndex].innerHTML;

	if(rate != "none")
	{

		ajaxFunction("freight="+rate+"&loc="+loc, "showFreightRate");	

	}

	else
	{

		document.getElementById('showFreightRate').innerHTML = "";

		document.getElementById('showFreightLoc').innerHTML = "";

	}

	if(!IsNumeric(rate))
	{

		rate = 0;
	}


	//ajaxFunction("freight="+rate+"&location="+loc, "none");

	

	//setTimeout("window.location = 'index.php?p=cart'", 60);
	setTimeout("window.location.reload(true)", 60);



}







function IsNumeric(sText)
{	
	var ValidChars = "0123456789.";

	var IsNumber=true;

	var Char;


	for (i = 0; i < sText.length && IsNumber == true; i++) 
	{ 

		Char = sText.charAt(i); 

		if (ValidChars.indexOf(Char) == -1) 
		{

			IsNumber = false;

		}

	}


	return IsNumber;

}




function validateCart(type)
{

	var text;

	for(i=0; i<document.cartForm.elements.length; i++)
	{

		text = document.cartForm.elements[i].name;				

	}

	if(type == "out" && (document.getElementById('frl').value == "" || document.getElementById('fr').value == "" || document.getElementById('frl').value == "Select your region"))
	{

		alert("Please seletct your freight location!")

		return false;

	}

	return true;

}



function removeItem(id)
{

	document.getElementById(id).value = 0;


	updateCart(id);

	//setTimeout("window.location ='index.php?p=cart'", 50);
	setTimeout("window.location.reload(true)", 300);

}



function noVis(id)
{
	document.getElementById(id).style.visibility = 'hidden'
}

function yesVis(id)
{
	document.getElementById(id).style.visibility = 'visible'
}