$(document).ready(function(){
	function calculatePrice() {
		var obj = document.getElementById("BlendUnits");
		if(obj.tagName && obj.tagName == "SELECT"){
			if(obj[obj.selectedIndex].value == ""){
				moreItems();
			}
		}
		
		$.ajax({  
			type: "POST",  
			url: "/product/calculatePrice",  
			data: $("#CalulatorForm").serialize(), 
			success: function(msg) {  
				$("#BlendPrice").html(msg);
			}
		});
	}
	
	function moreItems() {
		$("#BlendUnitsWrapper").html("<input type=\"text\" name=\"BlendUnits\" id=\"BlendUnits\" class=\"text-tiny\" />");
		$("#BlendUnits").bind("change keyup", calculatePrice);
		//$("#BlendUnits").change(calculatePrice);
	}
    
	// Initialize as selectbox
    $("#BlendProduct").change(calculatePrice);
	$("#BlendUnits").change(calculatePrice);
	calculatePrice();
});