// JavaScript Document
function validation()
{
	var alphaExp = /^[a-zA-Z\s]+$/;
	if(alphaExp.test(document.submit.f_name.value)== false || document.submit.f_name.value=='Name')
	{
		alert("Please enter only letters for your name");
		document.submit.f_name.focus();
		return false;
	}
	if(document.submit.subject.value=='Subject')
	{
		alert("Please enter the subject");
		document.submit.subject.focus();
		return false;
	}
	var numericExpression = /^[0-9]+$/;
	if(numericExpression.test(document.submit.phone.value)==false || document.submit.phone.value=='Phone' || document.submit.phone.value.length>10 || document.submit.phone.value.length<10 )
	{
		alert("Please Enter Numeric Values in phone");
		document.submit.phone.focus();
		return false;
	}
	
	var regMail = /^([_a-zA-Z0-9-]+)(\.[_a-zA-Z0-9-]+)*@([a-zA-Z0-9-]+\.)+([a-zA-Z]{2,3})$/;
	if(regMail.test(document.submit.email.value) == false)
	{
		alert("Please enter valid Emailid");
		document.submit.email.focus();
		   return false;
	}
	if(document.submit.comments.value=='Requirement')
	{
		alert("Please enter your Requirement");
		document.submit.comments.focus();
		return false;
	}
}