var timerSecCounter = 1;
var funcList = new Array();


function addToTimer(funcName, timer) 
{
    var temp = new Array(funcName, timer);
    funcList.push(temp);
    return true;
}

//addToTimer("showElement_1505()", 3);
//addToTimer("showElement_1506()", 2);

window.setInterval("doTimer()", 1000);
function doTimer() 
{
    if (funcList.length == 0) {
        return true;
    }
    
    for (var i=0; i < funcList.length; i++) {
        var funcName = funcList[i][0];
        var timer    = funcList[i][1];
        
        if ((timerSecCounter % timer) == 0) {
            eval(funcName);
        }
    }
    timerSecCounter++;
    return true;
}