function getOb(){
var xmlHttp;
try  {  xmlHttp=new XMLHttpRequest(); } //FF,Opera,Safari
catch (e) {
	try  {xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}//IE
	catch (e) {
		try {xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}
	    catch (e) {
	    alert("Your browser does not support AJAX!");
      }
    }
  }
  return(xmlHttp);
}


function getDiv(url,myDiv,postfn,params){
  var xmlHttp=getOb();
	xmlHttp.onreadystatechange=function(){
	    if(xmlHttp.readyState==4)  { 
	    try{document.getElementById("waitTime").style.display="none";}
	    catch(e){}
	      if(xmlHttp.status!=200){alert(xmlHttp.status+"//"+xmlHttp.responseText)}
	      if(myDiv){document.getElementById(myDiv).innerHTML=(xmlHttp.responseText);}
			if(postfn){
			    if(params){
			        postfn(params)
			    }else{
			        postfn()
			    }
			}
	      
  		}else{
  		    try{document.getElementById("waitTime").style.display="block";}
  		    catch(e){}
  		}
	}
  xmlHttp.open("GET",url,true);
  xmlHttp.send(null);
}
function postDiv(url,myDiv,vars,postfn,params){
  var xmlHttp=getOb();
	xmlHttp.onreadystatechange=function(){
		if(xmlHttp.readyState==4)  {
		    document.getElementById("waitTime").style.display="none";
			if((xmlHttp.status!=200)){alert("Error:"+xmlHttp.status+"//"+xmlHttp.responseText)}
			if((myDiv)&&(myDiv!="")){document.getElementById(myDiv).innerHTML=(xmlHttp.responseText)}
			if(postfn){
			    if(params){
			        postfn(params)
			    }else{
			        postfn()
			    }
			}
  		}else{
  		    document.getElementById("waitTime").style.display="block";
  		}
	}
  xmlHttp.open("POST",url,true);
  xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  xmlHttp.setRequestHeader("Content-length", vars.length);
  xmlHttp.setRequestHeader("Connection", "close");  
  xmlHttp.send(vars);
}
function sendForm(url,div,fm,postfn){
var qstr="form="+fm.name;
	for(e in fm.elements){
		try{
			switch(fm.elements[e].type){
			case "hidden":
			case "textarea":
			case "text":
			case "password":
				if(fm.elements[e].value!=""){
					qstr+="&"+fm.elements[e].name+"="+escape(fm.elements[e].value);
				}
				break;
			case "select-one":
				qstr+="&"+fm.elements[e].name+"="+fm.elements[e].options[fm.elements[e].selectedIndex].value;
				break;
			
				}
		}
		catch(e){
			
		}
	
	}
	postDiv(url,div,qstr,postfn);
}
function hideloader(pfn) {
    document.getElementById("popwait").style.display = "none";
    if(pfn){pfn();}
}
function popup(url,pfn) {
	document.getElementById("popCont").innerHTML="Loading ...";
    document.getElementById("popwait").style.display = "block";
    getDiv(url, "popCont",hideloader,pfn);
	document.getElementById("blackCurtain").style.display="block";
	document.getElementById("mpop").style.display="block";	
 }
 
function npp(url,pfn) {
	document.getElementById("popCont").innerHTML="Loading ...";
    document.getElementById("popwait").style.display = "block";
    getDiv(url, "popCont",hideloader,pfn);
	document.getElementById("blackCurtain").style.display="block";
	document.getElementById("mpop").style.display="block";	
 }
  
function googleCheckout() {
	document.getElementById("blackCurtain").style.display="block";
	document.getElementById("googleCheckout").style.display="block";	
}
function popout() {
	document.getElementById("blackCurtain").style.display="none";
	document.getElementById("googleCheckout").style.display="none";	
	document.getElementById("mpop").style.display="none";		
}
function validateAmount(amount){
	if(amount.value.match( /^[0-9]+(\.([0-9]+))?$/)){
		return true;
	}else{
		alert('You must enter a valid donation.');
		amount.focus();
		return false;
	}
}
function validateEmail(elementValue){ 
var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/; return emailPattern.test(elementValue); }
function sendFriend(fm){
	if(!validateEmail(fm.mto.value)){alert("Te email: '"+fm.mto.value+"' doesn't seem to be a have a valid format.\nPlease type a valid email.")}	
}