function CheckSearch() {

			if(document.f1.what.value=="")
			{
				window.alert('Enter the search criteria, please!');
				document.f1.what.focus();
				return false;
			}

		}

		function CheckFriend() {

			if(document.sfriend.f1.value=="")
			{
				window.alert('Enter your email address!');
				document.sfriend.f1.focus();
				return false;
			}

			if(document.sfriend.f2.value=="")
			{
				window.alert('Enter your friend email address!');
				document.sfriend.f2.focus();
				return false;
			}

		}

		function CheckLogin() {

			if(document.lform.us.value=="")
			{
				window.alert('Enter your username, please!');
				document.lform.us.focus();
				return false;
			}

			if(document.lform.ps.value=="")
			{
				window.alert('Enter your password, please!');
				document.lform.ps.focus();
				return false;
			}

		}

		function CheckForgot() {

			if(document.ForgotForm.u2.value=="")
			{
				window.alert('Enter your username, please!');
				document.ForgotForm.u2.focus();
				return false;
			}
		}

		function CheckRegister() {

			if(document.RegForm.NewUsername.value=="")
			{
				window.alert('Enter your username, please!');
				document.RegForm.NewUsername.focus();
				return false;
			}

			if(document.RegForm.p1.value=="")
			{
				window.alert('Enter your password, please!');
				document.RegForm.p1.focus();
				return false;
			}

			if(document.RegForm.p2.value=="")
			{
				window.alert('Confirm your password, please!');
				document.RegForm.p2.focus();
				return false;
			}

			if(document.RegForm.p1.value != "" && document.RegForm.p2.value != "" && document.RegForm.p1.value != document.RegForm.p2.value)
			{
				window.alert('Enter and confirm your password again!');
				document.RegForm.p1.value="";
				document.RegForm.p2.value="";
				document.RegForm.p1.focus();
				return false;
			}

			if(document.RegForm.CompanyName.value=="")
			{
				window.alert('Enter your company name, please!');
				document.RegForm.CompanyName.focus();
				return false;
			}

			if(document.RegForm.CategoryID.value=="")
			{
				window.alert('Select your business category, please!');
				document.RegForm.CategoryID.focus();
				return false;
			}

			if(document.RegForm.FirstName.value=="")
			{
				window.alert('Enter your First Name, please!');
				document.RegForm.FirstName.focus();
				return false;
			}

			if(document.RegForm.LastName.value=="")
			{
				window.alert('Enter your Last Name, please!');
				document.RegForm.LastName.focus();
				return false;
			}

			if(document.RegForm.address.value=="")
			{
				alert('Enter your address, please!');
				document.RegForm.address.focus();
				return false;
			}

			if(document.RegForm.city.value=="")
			{
				alert('Enter your city, please!');
				document.RegForm.city.focus();
				return false;
			}

			if(document.RegForm.state.value=="")
			{
				alert('Enter your state, please!');
				document.RegForm.state.focus();
				return false;
			}

			if(document.RegForm.country.value=="")
			{
				alert('Select your country, please!');
				document.RegForm.country.focus();
				return false;
			}

			if(document.RegForm.phone.value=="")
			{
				window.alert('Enter your Phone, please!');
				document.RegForm.phone.focus();
				return false;
			}

			if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.RegForm.email.value))
			{
				return true;
			}
			
			alert("Invalid E-mail Address! Please re-enter.");
			document.RegForm.email.focus();
			return false;
			

		}

		function CheckProfile() {

			if(document.RegForm.p1.value=="")
			{
				window.alert('Enter your password, please!');
				document.RegForm.p1.focus();
				return false;
			}

			if(document.RegForm.p2.value=="")
			{
				window.alert('Confirm your password, please!');
				document.RegForm.p2.focus();
				return false;
			}

			if(document.RegForm.p1.value != "" && document.RegForm.p2.value != "" && document.RegForm.p1.value != document.RegForm.p2.value)
			{
				window.alert('Enter and confirm your password again!');
				document.RegForm.p1.value="";
				document.RegForm.p2.value="";
				document.RegForm.p1.focus();
				return false;
			}

			if(document.RegForm.FirstName.value=="")
			{
				window.alert('Enter your First Name, please!');
				document.RegForm.FirstName.focus();
				return false;
			}

			if(document.RegForm.LastName.value=="")
			{
				window.alert('Enter your Last Name, please!');
				document.RegForm.LastName.focus();
				return false;
			}

			if(document.RegForm.address.value=="")
			{
				alert('Enter your address, please!');
				document.RegForm.address.focus();
				return false;
			}

			if(document.RegForm.city.value=="")
			{
				alert('Enter your city, please!');
				document.RegForm.city.focus();
				return false;
			}

			if(document.RegForm.state.value=="")
			{
				alert('Enter your state, please!');
				document.RegForm.state.focus();
				return false;
			}

			if(document.RegForm.country.value=="")
			{
				alert('Select your country, please!');
				document.RegForm.country.focus();
				return false;
			}

			if(document.RegForm.phone.value=="")
			{
				window.alert('Enter your Phone, please!');
				document.RegForm.phone.focus();
				return false;
			}

			if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.RegForm.email.value))
			{
				return true;
			}
			
			alert("Invalid E-mail Address! Please re-enter.");
			document.RegForm.email.focus();
			return false;

		}

		function CheckOffer() {
	
			if(document.PostForm.CategoryID.value=="")
			{
				alert('Select the category in which your offer will appear!');
				document.PostForm.CategoryID.focus();
				return false;
			}

			if(document.PostForm.year.value=="")
			{
				alert('Select the vehicle year, please!');
				document.PostForm.year.focus();
				return false;
			}

			if(document.PostForm.SelectMake.value=="")
			{
				alert('Select the vehicle make, please!');
				document.PostForm.SelectMake.focus();
				return false;
			}

			if(document.PostForm.VehicleModel.value=="")
			{
				alert('Enter the vehicle model, please!');
				document.PostForm.VehicleModel.focus();
				return false;
			}

			if(document.PostForm.VehicleColor.value=="")
			{
				alert('Enter the vehicle color, please!');
				document.PostForm.VehicleColor.focus();
				return false;
			}

			if(document.PostForm.mileage.value=="")
			{
				alert('Enter the vehicle mileage, please!');
				document.PostForm.mileage.focus();
				return false;
			}

			if(document.PostForm.DetailedDesc.value=="")
			{
				alert('Describe your vehicle in details, please!');
				document.PostForm.DetailedDesc.focus();
				return false;
			}

			if(document.PostForm.Price.value=="")
			{
				alert('Enter the price, please!');
				document.PostForm.Price.focus();
				return false;
			}

		}