function endis(x) {
	cb=eval("document.newsletter.cb"+x);
	ps=eval("document.newsletter.ps"+x);
	if (cb.checked) {
		ps.disabled=false;
	} else if (!cb.checked) {
		ps.disabled=true;
	}
}

var elisting=new Array("Yahoo","Google","Other websites (e.g. ExtraOrdinary Weddings, 88db, Hot Frog)","Others","Radio","Newspaper","Dining Magazines","Wedding Magazines","Entertainment and lifestyle Magazines","Marketing/Business Magazines","Seminars/presentations","Attended an event(s) hosted by Purple Sage","Seen your company vehicles","Word of mouth","Others");
var elistingPS=new Array("no","no","ps","ps","no","no","ps","ps","ps","ps","no","no","no","no","ps");

function ValidateForm_newsletter(form)
{
      if(IsEmpty(form.fname)) 
   { 
      alert('First name is required.') 
      form.fname.focus(); 
      return false; 
   } 
   
         if(IsEmpty(form.lname)) 
   { 
      alert('Last name is required.') 
      form.lname.focus(); 
      return false; 
   } 
   
         if(IsEmpty(form.emailadd)) 
   { 
      alert('Email address is required.') 
      form.emailadd.focus(); 
      return false; 
   } 
   
	 if(!emailValidator(form.emailadd))
   { 
      alert('Please enter a valid email address. Your email address should look like "yourname@myemail.com"') 
      form.emailadd.focus(); 
      return false; 
     } 
	 
	 checkedone=false;
	 for (i=0;i<=14;i++) {
	 	if (eval("document.newsletter.cb"+i).checked) {
			checkedone=true;
//			var ps_name = "document.newsletter.ps"+i;
			if(eval("document.newsletter.ps"+i).value == "") {
				alert('Please specify the '+elisting[i]) 
      			eval("document.newsletter.ps"+i).focus(); 
      			return false; 
			}
		} 
	 }
	 if (!checkedone){
			alert('Please tell us how do you know about us.') 
			return false; 
	}

return true;
 
} 

function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }

function IsEmpty(aTextField) {
   if ((aTextField.value.length == 0) ||
   (aTextField.value==null)) {
      return true;
   }
   else { return false; }
}

function minChar(sText1) {
   if ((sText1.value.length < 8) ||
   (aTextField.value==null)) {
      return true;
   }
   else { return false; }
}

function isValidEmail(str) {
   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
}

/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

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){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

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

 		 return true					
	}

function isAlphabet(elem){
	var alphaExp = /^[a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}
	else {return false;	}
}

function emailValidator(elem){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}
	else{return false;}
}