function validate( send_enquiry )
{
if 
    		( send_enquiry.client_name.value == "" ) {
			alert("Client Name is Missing");
			send_enquiry.client_name.focus();
			return false;
		}

else if( send_enquiry.contact_name.value == "" ) 
		{ 
		alert("Contact Name is Missing");
		send_enquiry.contact_name.focus();
			return false;
		}

else if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(send_enquiry.email.value))) {
			alert("Invalid Email Address");
			send_enquiry.email.focus();
			return false;
		}
else if( send_enquiry.phone.value == "" ) 
		{ 
		alert("Phone is Missing");
		send_enquiry.phone.focus();
			return false;
		}
else if( send_enquiry.product_category.value == "" ) 
		{ 
		alert("Select Product Category");
		send_enquiry.product_category.focus();
			return false;
		}
else if( send_enquiry.suppliers.value == "" ) 
		{ 
		alert("Select Supplier");
		send_enquiry.suppliers.focus();
			return false;
		}
		
		
}