function tech1()
{
	if(document.f.product_required.value=="")
	{
		alert("Please Give your requirement and description.");
		document.f.product_required.focus();
		return false;
	}
	if(document.f.Name.value=="")
	{
		alert("Please enter your Name.");
		document.f.Name.focus();
		return false;
	}
	if(document.f.CompanyName.value=="")
	{
		alert("Please enter Company Name.");
		document.f.CompanyName.focus();
		return false;
	}
	if(document.f.Title.value=="")
	{
		alert("please enter the Title.");
		document.f.Title.focus();
		return false;
	}
	if(document.f.Email.value=="")
	{
		alert("Please enter Your Email ID.");
		document.f.Email.focus();
		return false;
	}
	if(document.f.ship_add.value=="")
	{
		alert("Please enter Ship Address.");
		document.f.ship_add.focus();
		return false;
	}
	if(document.f.City.value=="")
	{
		alert("Please enter the City.");
		document.f.City.focus();
		return false;
	}
	if(document.f.State.value=="")
	{
		alert("Please enter the State.");
		document.f.State.focus();
		return false;
	}
	if(document.f.Country.value=="")
	{
		alert("Please enter the Country.");
		document.f.Country.focus();
		return false;
	}
	if(document.f.therm_shock_resis.value=="")
	{
		alert("Please select any one from this list...");
		document.f.therm_shock_resis.focus();
		return false;
	}
	if(document.f.Hot_Strength.value=="")
	{
		alert("Please select any one from Hot Strength list...");
		document.f.Hot_Strength.focus();
		return false;
	}
	if(document.f.Flatness.value=="")
	{
		alert("Please select any one from Flatness list...");
		document.f.Flatness.focus();
		return false;
	}
	if(document.f.dimensl_integrity.value=="")
	{
		alert("Please select any one from this list...");
		document.f.dimensl_integrity.focus();
		return false;
	}
	if(document.f.Surface_Finish.value=="")
	{
		alert("Please select any one from surface finish list...");
		document.f.Surface_Finish.focus();
		return false;
	}
	if(document.f.Chemical_Compatibility.value=="")
	{
		alert("Please select any one from this list...");
		document.f.Chemical_Compatibility.focus();
		return false;
	}
	if(document.f.Bending_Resistance.value=="")
	{
		alert("Please select any one from this list...");
		document.f.Bending_Resistance.focus();
		return false;
	}
	if(document.f.Type_Furn_kiln.value=="")
	{
		alert("Please select type of furnace or kiln...");
		document.f.Type_Furn_kiln.focus();
		return false;
	}
	if(document.f.Atmosphere.value=="")
	{
		alert("Please select Atmosphere...");
		document.f.Atmosphere.focus();
		return false;
	}
	if(document.f.Fuel_used.value=="")
	{
		alert("Please select which type of energy will be use....");
		document.f.Fuel_used.focus();
		return false;
	}
	if(document.f.Max_oper_temp.value=="")
	{
		alert("Please enter the Maximum Operation Temperature.");
		document.f.Max_oper_temp.focus();
		return false;
	}
	if(document.f.Heating_Hours.value=="")
	{
		alert("Please enter the Heating time.");
		document.f.Heating_Hours.focus();
		return false;
	}
	if(document.f.Soaking_Hours.value=="")
	{
		alert("Please enter the Soaking Hours.");
		document.f.Soaking_Hours.focus();
		return false;
	}
	if(document.f.Cooling_hours.value=="")
	{
		alert("Please enter the Cooling Hour.");
		document.f.Cooling_hours.focus();
		return false;
	}
	if(document.f.Max_Heating_Rate.value=="")
	{
		alert("Please enter the Maximum heating Time.");
		document.f.Max_Heating_Rate.focus();
		return false;
	}
	if(document.f.Max_cooling_rate.value=="")
	{
		alert("Please enter the Max. cooling rate.");
		document.f.Max_cooling_rate.focus();
		return false;
	}
	if(document.f.Heating_Method.value=="")
	{
		alert("Please select type of heating method...");
		document.f.Heating_Method.focus();
		return false;
	}
	if(document.f.Flame_imping_kiln_furniture.value=="")
	{
		alert("Please select yes or no.");
		document.f.Flame_imping_kiln_furniture.focus();
		return false;
	}
	if(document.f.Size.value=="")
	{
		alert("Please enter the Size.");
		document.f.Size.focus();
		return false;
	}
	if(document.f.Drawing_reqd.value=="")
	{
		alert("Please enter the Requirement of drawing.");
		document.f.Drawing_reqd.focus();
		return false;
	}
	if(document.f.No_of_pieces.value=="")
	{
		alert("How many pieces would you Need?");
		document.f.No_of_pieces.focus();
		return false;
	}
	if(document.f.Presently_using.value=="")
	{
		alert("Presently Using or Not?");
		document.f.Presently_using.focus();
		return false;
	}
	if(document.f.Spec_Tolerances.value=="")
	{
		alert("Please enter the Specification or Tolerance?.");
		document.f.Spec_Tolerances.focus();
		return false;
	}
	if(document.f.Additional_Comments.value=="")
	{
		alert("Please enter your additional Comments!");
		document.f.Additional_Comments.focus();
		return false;
	}
	else
	return true;
}

function checkMail()
 {
	var t = new RegExp("^[a-z0-9][a-z0-9_]*[@]{1,1}[a-z0-9]+[.]{1,1}[a-z0-9]+", "i")
	v = document.f.Email.value;
	if(!(t.test(v)))
	{
		alert("Enter Correct E-Mail address.");
		document.f.Email.focus();
		document.f.Email.select();
		return false;
	}
	else 
	return true;
 }
 
 function tech()
 {
	 if(tech1() && checkMail())
	 {
		 document.f.method="post";
		 document.f.action="index.php?a=tech_db";
		 document.f.submit();
	 }
 }