function getElementByClass(classname){
	ccollect=new Array()
	var inc=0
	var alltags=document.all? document.all : document.getElementsByTagName("*")
	for (i=0; i<alltags.length; i++){
		if (alltags[i].className==classname)
		ccollect[inc++]=alltags[i]
	}
}

function isForDelete() {
    x=confirm('Da li želite izbrisati podatak?');
    if (x) {
	   return true;
	} else {
	   return false;
	}
}



function isNumber(input)
{
	s = input.value;
	filteredValues = "1234567890"; //aloved values
	var i;
	for (i = 0; i < s.length; i++)
	{
		var c = s.charAt(i);
		if (filteredValues.indexOf(c) == -1)
		{
			return false;
		}
	}
	return true;
}

var req;
var target;
var isIE;

function initRequest(url) {
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
    } else if (window.ActiveXObject) {
        isIE = true;
        req = new ActiveXObject("Microsoft.XMLHTTP");
    }
}

function validate(serverFileName, variableNames, variableValues) {
    var paramString = '';
	
		variableNames = variableNames.split(',');
		variableValues = variableValues.split(',');
		
		for(i=0; i<variableNames.length; i++) {
			paramString += variableNames[i]+'='+variableValues[i]+'&';
		}
		paramString = paramString.substring(0, (paramString.length-1));
				
		if (paramString.length == 0) {
		   	var url = serverFileName;
		} else {
			var url = serverFileName+'?'+paramString;
		}    
    initRequest(url);
    req.onreadystatechange = processRequest;
    req.open("GET", url, true); 
    req.send(null);
}

function processRequest() {
    if (req.readyState == 4) {
        if (req.status == 200) {
            var message = req.responseText;
            setMessageUsingDOM(message);
        }
    }
}

function setMessageUsingInline(message) {
    mdiv = document.getElementById("userIdMessage");
    if (message == "No good") {
       mdiv.innerHTML = "<div style=\"color:red\">message</div>";
    } else {
       mdiv.innerHTML = "<div style=\"color:green\">message</div>";
    }  
}

 function setMessageUsingDOM(message) {
     document.getElementById("mainContent").innerHTML = message;
	 //jos da postavi loader na nevidljivo
 }