function checkSearchField() {
    var keywords = document.getElementById('keywords').value;
    var charLength = keywords.length; 

   if ((keywords.length==0) || (keywords==null)) {
      alert("Please provide search keywords");
      return false;
   } else if (charLength <= 2 ) {
       alert("Less then three characters are now allowed");
       return false;
   } else { 
       return true; 
   }  
}	

function checkInput() {
     getEvent=event.keyCode;
     if (getEvent == "13") {
      return checkSearchField();
    }
}

 function checkEmail(){
         var email = document.getElementById("email").value;
         if(email == ""){
             alert("Please provide email address");
             return false;
		}
         else{
             var isEmail_re       = /^\s*[\w\-\+_]+(\.[\w\-\+_]+)*\@[\w\-\+_]+\.[\w\-\+_]+(\.[\w\-\+_]+)*\s*$/;
             var valid = String(email ).search (isEmail_re) != -1;
             if(!valid) {alert ("wrong email address"); return false; 
		}
             else return true;
         }
 }

function setLocationDivs(){ 
    document.getElementById("locations").style.display="block";
    document.getElementById("linkLoc").style.display="none";
    document.getElementById('toAddress').focus();
}// JavaScript Document