function PageQuery(q) {
  if(q.length > 1) this.q = q.substring(1, q.length);
  else this.q = null;
  this.keyValuePairs = new Array();

  if(q) {
    for(var i=0; i < this.q.split("&").length; i++) {
      this.keyValuePairs[i] = this.q.split("&")[i];
    }
  }

  this.getKeyValuePairs = function() { return this.keyValuePairs; }

  this.getValue = function(s) {
    for(var j=0; j < this.keyValuePairs.length; j++) {
      if(this.keyValuePairs[j].split("=")[0] == s)
        return this.keyValuePairs[j].split("=")[1];
    }
    return false;
  }

  this.getParameters = function() {
    var a = new Array(this.getLength());
    for(var j=0; j < this.keyValuePairs.length; j++) {
      a[j] = this.keyValuePairs[j].split("=")[0];
    }
    return a;
  }

  this.getLength = function() { return this.keyValuePairs.length; }
}

function queryString(key){
  var page = new PageQuery(window.location.search);
  return unescape(page.getValue(key));
}

function displayItem(key){
  if(queryString(key)=='false'){
    document.write("you didn't entez a ?name=value querystring item.");
  }else{
    document.write(queryString(key));
  } 
}

$(document).ready(function(){
	if(queryString("cid")!=="false"){$("#cid").attr("value",queryString("cid"));}
	if(queryString("ls")!=="false"){$("#ls").attr("value",queryString("ls"));}
	if(queryString("sls")!=="false"){$("#sls").attr("value",queryString("sls"));}
});