var username = "";
var topoName = "";
function  setTopoName(str){
	topoName = str;
}
function postRequest(strURL){
	
	//alert(strURL);
	var xmlHttp;
	if(window.XMLHttpRequest){ // For Mozilla, Safari, ...
		var xmlHttp = new XMLHttpRequest();
	}
	else if(window.ActiveXObject){ // For Internet Explorer
		var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlHttp.open('POST', strURL, true);
	xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xmlHttp.onreadystatechange = function(){
		if (xmlHttp.readyState == 4){
			updatepage(xmlHttp.responseText);
		}
	}
	xmlHttp.send(strURL);
}

function updatepage(str){
	alert(str)
	
    //strMatch = str.match("ok");
	//strOK = "";
	//if(strMatch != null){
    	//if(strMatch.length>0){
    	  //strOK = strMatch[0] ;       
    	//}
	//}
	//if(strOK=="ok"){
		//alert("Details updated");
		
	//}
	//else{
		//alert("Update failed! " + str);
	//}
	
}
function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function updateUserDefaultLink(){
	var ucasePrefix = "HTTP://";
	
	username = window.document.f1.username.value;
	
	var linkURL = window.document.f1.linkURL.value
	var linkURL = linkURL.toUpperCase();
	if(trim(linkURL)==""){
	}
	if(linkURL.indexOf(ucasePrefix)!=0){
		alert("URL MUST BEGIN WITH \"http://\"");
		//alert("OkOk");
		return;
	}
	
	
		
	var linkURL = trim(window.document.f1.linkURL.value);
	var linkName = window.document.f1.linkName.value;
	var url = "updateUser.php?defaultLinkURL=" + linkURL + "&defaultLinkName=" +linkName  + "&userName=" +username ;
	postRequest(url);
	//}
} 

function updateTopoLink(){
	alert(topoName);
}