function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if (str.indexOf(at)==-1){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}

function validateform()
{
	form = document.registration;
	text = form["first_name"];
	if ( !text.value)
	{
		alert("Please enter your first name.");
		text.focus();
		return false;
	}
	text = form["last_name"];
	if ( !text.value )
	{
		alert("Please enter your last name.");
		text.focus();
		return false;
	}
	text = form["title"];
	if ( !text.value )
	{
		alert("Please enter your title.");
		text.focus();
		return false;
	}
	text = form["company"];
	if ( !text.value )
	{
		alert("Please enter your company name.");
		text.focus();
		return false;
	}
	text = form["address"];
	if ( !text.value )
	{
		alert("Please enter your address.");
		text.focus();
		return false;
	}
	text = form["city"];
	if ( !text.value)
	{
		alert("Please enter your city.");
		text.focus();
		return false;
	}
	text = form["state"];
	if ( !text.value)
	{
		alert("Please enter your state.");
		text.focus();
		return false;
	}
	text = form["country"];
	if ( !text.value)
	{
		alert("Please enter your country.");
		text.focus();
		return false;
	}
	text = form["postcode"];
	if ( !text.value)
	{
		alert("Please enter your zip code.");
		text.focus();
		return false;
	}
	text = form["phone"];
	if ( !text.value )
	{
		alert("Please enter your company phone number.");
		text.focus();
		return false;
	}
	/*
	text = form["email"];
	if ( !text.value )
	{
		alert("Please enter your e-mail address.");
		text.focus();
		return false;
	}*/
	
	var emailID=document.registration("email");

	if(emailID.value.toLowerCase().indexOf("@hotmail.com")!=-1 || 
	emailID.value.toLowerCase().indexOf("@yahoo.com")!=-1 || 
	emailID.value.toLowerCase().indexOf("@msn.com")!=-1) {
	alert("Please use another e-mail address");
	emailID.value=""
	return false
	}

	if ((emailID.value==null)||(emailID.value=="")){
		alert("Please enter your e-mail address")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
	//	emailID.value=""
		emailID.focus()
		return false
	}
	
	
	text = form["type_mechanism"];
	if ( !text.value )
	{
		alert("Please enter the type of mechanism.");
		text.focus();
		return false;
	}	
	text = form["components_lubricated"];
	if ( !text.value )
	{
		alert("Please enter the components to be lubricated.");
		text.focus();
		return false;
	}
	text = form["materials_construction"];
	if ( !text.value )
	{
		alert("Please enter the materials of construction.");
		text.focus();
		return false;
	}
	text = form["type_touch"];
	if (document.registration.lubricant_touch[0].checked && 
		!text.value )
	{
		alert("Please enter the type of component.");
		text.focus();
		return false;
	}
	text = form["lowest_operating_temperature"];
	if ( !text.value )
	{
		alert("Please enter the lowest operating temperature.");
		text.focus();
		return false;
	}
	text = form["highest_operating_temperature"];
	if ( !text.value )
	{
		alert("Please enter the highest operating temperature.");
		text.focus();
		return false;
	}
	text = form["present_life"];
	if ( !text.value )
	{
		alert("Please enter the present operating life.");
		text.focus();
		return false;
	}
	text = form["desired_life"];
	if ( !text.value )
	{
		alert("Please enter the desired operating life.");
		text.focus();
		return false;
	}
	text = form["desired_life_hot"];
	if ( !text.value )
	{
		alert("Please enter the desired life at highest temp.");
		text.focus();
		return false;
	}
	text = form["present_lubricant"];
	if ( !text.value )
	{
		alert("Please enter the present lubricant.");
		text.focus();
		return false;
	}	
	text = form["unsatisfactory"];
	if ( !text.value )
	{
		alert("Please indicate why unsatisfactory.");
		text.focus();
		return false;
	}	
	
	
	
	
	
	return true;
}