function validatefrm()
{
var form = document.frmcontact;
var emailvalid = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

if(form.fname.value == '')
{
alert('Please Enter First Name!');
form.fname.focus();
return false;
}

if(!isNaN(form.fname.value))
{
alert('Please Enter Valid First Name!');
form.fname.focus();
return false;	
}

if(form.lname.value == '')
{
alert('Please Enter Last Name!');
form.lname.focus();
return false;
}

if(!isNaN(form.lname.value))
{
alert('Please Enter Valid Last Name!');
form.lname.focus();
return false;	
}

if(form.address.value == '')
{
alert('Please Enter Address!');
form.address.focus();
return false;
}

if(form.email.value == '')
{
alert('Please Enter Email Id!');
form.email.focus();
return false;
}

if(!emailvalid.test(form.email.value))
{
alert('Plaese Enter Valid Email Id!');
form.email.focus();
return false;
}

if(form.phone.value =='')
{
alert('Plaese Enter Phone No.!');
form.phone.focus();
return false;
}

if(form.fax.value == '')
{
alert('Plaese Enter Fax!');
form.fax.focus();
return false;
}

if(form.comments.value == '')
{
alert('Plaese Enter Comments!');
form.comments.focus();s
return false;
}

}