// JavaScript Document

function valid(form)
{
  var ff = form;
  if(ff.companyname.value=="")
  {
   alert("please enter your COMPANY NAME.");
   ff.companyname.focus();
   return false;
  }
  if(ff.name.value=="")
  {
   alert("please enter your NAME.");
   ff.name.focus();
   return false;
  }
  if(ff.phoneno.value=="")
  {
   alert("please enter your PHONE NO.");
   ff.phoneno.focus();
   return false;
  }
  if(ff.mobileno.value=="")
  {
   alert("please enter your MOBILE NO.");
   ff.mobileno.focus();
   return false;
  }
  
  
  if ((ff.email.value).indexOf(" ")>=0)
		{
		alert ("Blank space not allowed inside email!");
		ff.email.select();
		return false;
		}
	
		if (document.ff.email.value.indexOf("@",1) == -1)
		{
			alert("Invalid E-Mail address");
			ff.email.focus();
			ff.email.select();
			return(false);
		}
		if (ff.email.value.indexOf("@") == 0)
		{
			alert("Invalid E-Mail address");
			ff.email.focus();
			ff.email.select();
			return(false);
		}
		if (ff.email.value.indexOf(".",5) == -1)
		{
			alert("Invalid E-Mail address");
			ff.email.focus();
			ff.email.select();
			return(false);
		}
		if (ff.email.value.indexOf(".") == 0)
		{
			alert("Invalid E-Mail address");
			ff.email.focus();
			ff.email.select();
			return(false);
		}
		
		if ((ff.email.value.lastIndexOf(".")) -(ff.email.value.indexOf("@"))<3 )
		{
		
			alert("Invalid E-Mail address");
			ff.email.focus();
			ff.email.select();
			return(false);
		}
		
		if ((ff.email.value.length)-(ff.email.value.indexOf("."))<2)
		{
			alert("Invalid E-Mail address");
			myform.register.select();
			ff.email.focus();
			return(false);
		}
 if(ff.postaladdress.value=="")
  {
   alert("please enter your POSTAL ADDRESS.");
   ff.postaladdress.focus();
   return false;
  }
  
  if(ff.comments.value=="")
  {
   alert("please enter your COMMENTS.");
   ff.comments.focus();
   return false;
  } 
  return true;
}