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("Email Address Not Recognized.")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Email Address Not Recognized.")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Email Address Not Recognized.")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Email Address Not Recognized.")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Email Address Not Recognized.")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Email Address Not Recognized.")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Email Address Not Recognized.")
		    return false
		 }

 		 return true					
	}
function dcheck(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("Email Address Not Recognized.")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Email Address Not Recognized.")
		   return false
		}*/

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Domain Name Format Not Recognized.")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Domain Name Format Not Recognized.")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Domain Name Format Not Recognized.")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Domain Name Format Not Recognized.")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Domain Name Format Not Recognized.")
		    return false
		 }

 		 return true					
	}	
function checkform ( form )
{
 
  // ** START **
   if (form.domain.value == "") {
    alert( "Please enter your domain name." );
    form.domain.focus();
    return false ;
  }
  if (form.fullname.value == "") {
    alert( "Please enter your full name." );
    form.fullname.focus();
    return false ;
  }
  if (echeck(form.email.value) == false) {
    alert( "Please enter your valid email address." );
    form.email.focus();
    return false ;
  }
  if (form.phone.value == "") {
    alert( "Please enter your contact number(mobile or house phone." );
    form.phone.focus();
    return false ;
  }
  if (form.postal.value == "") {
    alert( "Please enter your postal address." );
    form.postal.focus();
    return false ;
  }
   if (form.tos.checked == false) {
    alert( "You required to read and agreed with our Terms & Condition." );
    form.tos.focus();
    return false ;
  } 
  
  // ** END **
  return true ;
}