function validCheckDomain(domain){
  var ss=domain.txtName.value;
  var spa="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-"
   var i=0;
     if (ss.length==0 ){
	 str="Please Enter the domain to check!"
			alert(str)
			return false;
	 }
   var sLength=ss.length-1;

	    if (ss.charAt(0)=="-") {
			str="Invlaid Input: Cannot start or end a domain name with a dash. "
			alert(str)
			return false;}
		if(ss.charAt(sLength)=="-"){
			str="Invlaid Input: Cannot start or end a domain name with a dash. "
			alert(str)
			return false;}

 while ((i<ss.length ))
{ 
   var c=ss.charAt(i);
 
   if (spa.indexOf(c)==-1) {
	   str="Invalid Input: Please use only letters, numbers or dashes [-]. Do not enter spaces, periods [.] or other punctuation.";
	   alert(str)
	   return false;}
   i++;
    
}
   
  return true;
   }