function validateForm()
{
    document.getElementById("fnameerr").innerHTML='';
    document.getElementById("lnameerr").innerHTML='';
    document.getElementById("emailerr").innerHTML='';
    document.getElementById("subjecterr").innerHTML='';
    document.getElementById("descriptionerr").innerHTML='';
    
	if(document.getElementById("fname").value=='')
	{
		document.getElementById("fnameerr").innerHTML='Please enter first name.';
		document.getElementById("fname").focus();
		return false;
	}
	else if(document.getElementById("lname").value=='')
	{
		document.getElementById("lnameerr").innerHTML='Please enter last name.';
		document.getElementById("lname").focus();
		return false;
	}
	else if(document.getElementById("email").value=='')
	{
		document.getElementById("emailerr").innerHTML='Please enter email address.';
		document.getElementById("email").focus();
		return false;
	}
	else if(!testEmail(document.getElementById("email").value))
	{
		document.getElementById("emailerr").innerHTML='Invalid email address.';
		document.getElementById("email").focus();
		return false;
	}
	else if(document.getElementById("subject").value=='')
	{
		document.getElementById("subjecterr").innerHTML='Please enter subject.';
		document.getElementById("subject").focus();
		return false;
	}
	else if(document.forms[0].description.value.length <1)
	{
		document.getElementById("descriptionerr").innerHTML='Please enter email description.';
		document.forms[0].description.focus();
		return false;
	}
	else
	{
	    //alert(document.forms[0].description.value);
		return true;
	}
}

function testEmail(src) {
    var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/;
    return regex.test(src);
}