//work with shoppingCart
var checkForm = {
		// default debug function
		debug: function(msg) 
		{
			alert(msg);
		}
	};
	
checkForm.main = {
	//check fio field
	//[out]  true, false
	fio: function ()
	{
		var fio = document.getElementById("fio").value;	
		if(fio.length>0)
		{
			var error_fio = document.getElementById("error_fio");
			error_fio.style.display = "none";
			return true;
		}
		else
		{
			var error_fio = document.getElementById("error_fio");
			error_fio.style.display = "inline";
			return false;
		}
	},
	
	//check phone field
	//[out]  true, false
	phone: function ()
	{
		var phone = document.getElementById("phone").value;	
		if(phone.length>0)
		{
			var error_phone = document.getElementById("error_phone");
			error_phone.style.display = "none";
			return true;
		}
		else
		{
			var error_phone = document.getElementById("error_phone");
			error_phone.style.display = "inline";
			return false;
		}
	},
	
	//check address field
	//[out]  true, false
	address: function ()
	{
		var address = document.getElementById("address").value;	
		if(address.length>0)
		{
			var error_address = document.getElementById("error_address");
			error_address.style.display = "none";
			return true;
		}
		else
		{
			var error_address = document.getElementById("error_address");
			error_address.style.display = "inline";
			return false;
		}
	}	
}
	


var submitForm = {
	//submit shoppingCart form
	shoppingCart: function()
	{
		var flag=true;
		if(!checkForm.main.fio())
		{
			flag=false;
		}
		
		if(!checkForm.main.phone())
		{
			flag=false;
		}
		
		if(!checkForm.main.address())
		{
			flag=false;
		}
		
		if(flag==true)
		{
			document.shopping_cart_form.submit();	
		}
		
	}
	
}