function FrontPage_Form1_Validator(theForm)
{
   if (theForm.chrName.value == "")
  {
    alert("Please fill in \"Name\" field.");
    theForm.chrName.focus();
    return (false);
  }  
  
      if (theForm.chrEmailaddress.value == "")
  {
    alert("Please fill in \"Email\" field.");
    theForm.chrEmailaddress.focus();
    return (false);
  }
  
if (theForm.chrEmailaddress.value!="")
	{
		var str=theForm.chrEmailaddress.value;
		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");
		   theForm.chrEmailaddress.focus();
		   return false;
		}
		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail:");
		   theForm.chrEmailaddress.focus();
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail");
			theForm.chrEmailaddress.focus();
		    return false;
		}
		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail");
			theForm.chrEmailaddress.focus();
		    return false;
		 }
		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail");
			theForm.chrEmailaddress.focus();
		    return false;
		 }
		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid E-mail");
			theForm.chrEmailaddress.focus();
		    return false;
		 }
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid E-mail");
			theForm.chrEmailaddress.focus();
		    return false;
		 }
	}  
  
  return (true);
}