function $(id) { return document.getElementById(id); }
function hide(obj) { $(obj).style.display='none'; }
function show(obj) { $(obj).style.display=''; }

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function onSubmitForm() {
    var formDOMObj = document.searchfrm;
	//Uncomment below to allow user to search all jobs
	//if (formDOMObj.Keyword.value.length < 4 && formDOMObj.Keyword.value.length > 0 && formDOMObj.Keyword.value != "all")
	if (formDOMObj.jobs.value.length < 3)
	{
        alert("Please enter a valid keyword (minimum 3 characters and above)")
		formDOMObj.jobs.focus();
	}
    else if(Validate_String(formDOMObj.jobs.value) == false)
	{
		alert("Invalid characters like \"/()#@$%\" etc. not allowed.")
		formDOMObj.jobs.focus();
	}
	else
        return true;
    return false;
}

function Validate_String(string, return_invalid_chars) {
  valid_chars = '1234567890,+- abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
  invalid_chars = '';
  if(string == null || string == '')
     return(true);

  //For every character on the string.   
  for(index = 0; index < string.length; index++) {
    char = string.substr(index, 1);                        
     
    //Is it a valid character?
    if(valid_chars.indexOf(char) == -1) {
      //If not, is it already on the list of invalid characters?
      if(invalid_chars.indexOf(char) == -1) {
        //If it's not, add it.
        if(invalid_chars == '')
          invalid_chars += char;
        else
          invalid_chars += ', ' + char;
      }
    }
  }
            
  //If the string does not contain invalid characters, the function will return true.
  //If it does, it will either return false or a list of the invalid characters used
  //in the string, depending on the value of the second parameter.
  if(return_invalid_chars == true && invalid_chars != '') {
    last_comma = invalid_chars.lastIndexOf(',');
    if(last_comma != -1)
      invalid_chars = invalid_chars.substr(0, $last_comma) + 
      ' and ' + invalid_chars.substr(last_comma + 1, invalid_chars.length);
    return(invalid_chars);
    }
  else
    return(invalid_chars == ''); 
}

function popUpResult(url){
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(url, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=250,left = 262,top = 259');");

 //window.open(url,'poll','resizable=no,width=500,height=200,scrollbars=yes,location=false');
}

function clickIE() {if (document.all) {(message);return false;}}
function clickNS(e) {if 
(document.layers||(document.getElementById&&!document.all)) {
if (e.which==2||e.which==3) {(message);return false;}}}
if (document.layers) 
{document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}
else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}

document.oncontextmenu=new Function("return false")