function validation_service()

{

	

	if(document.form.name.value=="Enter name")

	{

		alert("Please Enter Your  name");

		document.form.name.focus();

		return false;

	}

	

	

	 

  	if(document.form.email.value=="Enter Email")

	{

	 	alert("Please enter the email address");

		document.form.email.focus();

		return false;

	}

	if(document.form.email.value!="")

	{

		if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.form.email.value)))

		{

			alert("Please Enter Valid Email address");

			document.form.email.focus();

			return false;

		}

	}

	

	

	if(document.form.phone.value=="Enter phone")

	{

	 	alert("Please enter the phone no");

		document.form.phone.focus();

		return false;

	}

		

	if(document.form.city.value=="Enter City")

	{

	 	alert("Please enter Your City");

		document.form.city.focus();

		return false;

	}

	



if(document.form.contact_message.value=="Enter Massage")

	{

	 	alert("Please enter Message");

		document.form.contact_message.focus();

		return false;

	}



}