function queryString(parameter) {
    var loc = location.search.substring(1, location.search.length);
    var param_value = false;
    var params = loc.split("&");
    for (i = 0; i < params.length; i++) {
        param_name = params[i].substring(0, params[i].indexOf('='));
        if (param_name == parameter) {
            param_value = params[i].substring(params[i].indexOf('=') + 1)
        }
    }
    if (param_value) {
        return param_value;
    }
    else {
        return false; //Here determine return if no parameter is found
    }
}

function LoadContent(Page, Div)
{
    //get the http object
    var xmlhttp=false;
    if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
        try {
	        xmlhttp = new XMLHttpRequest();
        } catch (e) {
	        xmlhttp=false;
        }
    }
    if (!xmlhttp && window.createRequest) {
        try {
	        xmlhttp = window.createRequest();
        } catch (e) {
	        xmlhttp=false;
        }
    }
            
    // call the page
    xmlhttp.open("GET", Page,true);
    xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState==4) {
        if(xmlhttp.status == 200) {
            document.getElementById(Div).innerHTML = xmlhttp.responseText;
        }
      }
    }
    xmlhttp.send(null)
}   

function setCookie(c_name, value)
{
	document.cookie = c_name + "=" + escape(value) + ";path=/";
}

function getCookie(c_name)
{
	if (document.cookie.length>0)
  	{
  		c_start=document.cookie.indexOf(c_name + "=");
  		if (c_start != -1)
    	{
    		c_start=c_start + c_name.length+1;
    		c_end=document.cookie.indexOf(";",c_start);
    		if (c_end == -1) 
    			c_end = document.cookie.length;
    		return unescape(document.cookie.substring(c_start, c_end));
    	}
  	}
	return "";
}