function onSubmit(){
	if (document.Enquiry.CompanyName.value  == "")
	{
		alert("Please enter your CompanyName.");
		document.Enquiry.CompanyName.focus()
		return false;
	}
	if (document.Enquiry.contact_person.value  == "")
	{
		alert("Please enter Contact Person Name .");
		document.Enquiry.contact_person.focus()
		return false;
	}
	if (document.Enquiry.Address.value  == "")
	{
		alert("Please enter your Address.");
		document.Enquiry.Address.focus()
		return false;
	}
	if (document.Enquiry.City.value  == "")
	{
		alert("Please enter City .");
		document.Enquiry.City.focus()
		return false;
	}
	if (document.Enquiry.telNo.value  == "")
	{
		alert("Please enter Telephone No .");
		document.Enquiry.telNo.focus()
		return false;
	}
	if (document.Enquiry.telNo.value!="")
	{
		var tel= parseInt(document.Enquiry.telNo.value); 
			if (isNaN(tel)) 
				{  
				alert("Enter Telephone Number Correctly");
				document.Enquiry.telNo.focus();
				return false
				} 
	}
	if (document.Enquiry.faxNo.value!="")
	{
		var fax= parseInt(document.Enquiry.faxNo.value);
		if (fax != "")
		{
			if (isNaN(fax))
			{
				alert("Enter Fax Number Correctly");
				document.Enquiry.fax.focus();
				return false
			}
		}
	}
		
	if (document.Enquiry.from.value  == "")
	{
		alert("Please enter Email Address .");
		document.Enquiry.from.focus()
		return false;
	}
	var tempEmail= document.Enquiry.from.value;
	var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
	var check=/@[\w\-]+\./;
	var checkend=/\.[a-zA-Z]{2,3}$/;
	if (document.Enquiry.from.value!="")
	{
	if (tempEmail.search(exclude)!=-1||tempEmail.search(check)==-1||tempEmail.search(checkend)==-1)
	{
		alert("Can you check your Email Address again?");
		document.Enquiry.from.focus();
		return false
	}
	}	
	if (document.Enquiry.requirement_details.value  == "")
	{
		alert("Please enter Requirement Details .");
		document.Enquiry.requirement_details.focus()
		return false;
	}		
	if (document.Enquiry.country.selectedindex== -1) 
	{
		alert("Please select your country.");
		document.Enquiry.country.focus()
		return false;
	}
	if (document.Enquiry.state.selectedindex==-1){
		alert("Please enter your State.");
		document.Enquiry.state.focus()
		return false;
	}
}