//****************************************BEGIN SLIDE CODE

var timerlen = 5;
var slideAniLen = 250;

var timerID = new Array();
var startTime = new Array();
var sliobj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();

function slidedown(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display != "none")
                return; // cannot slide down something that is already visible

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
}

function slideup(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

function startslide(objname){
        sliobj[objname] = document.getElementById(objname);

        endHeight[objname] = parseInt(sliobj[objname].style.height);
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
                sliobj[objname].style.height = "1px";
        }

        sliobj[objname].style.display = "block";

        timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}

function slidetick(objname){
        var elapsed = (new Date()).getTime() - startTime[objname];

        if (elapsed > slideAniLen)
                endSlide(objname)
        else {
                var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
                if(dir[objname] == "up")
                        d = endHeight[objname] - d;

               sliobj[objname].style.height = d + "px";
        }

        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);

        if(dir[objname] == "up")
                sliobj[objname].style.display = "none";

        sliobj[objname].style.height = endHeight[objname] + "px";

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(sliobj[objname]);
        delete(dir[objname]);

        return;
}

function toggleSlide(objname){
  if(document.getElementById(objname).style.display == "none"){
    // div is hidden, so let's slide down
    slidedown(objname);
  }else{
    // div is not hidden, so slide up
    slideup(objname);
  }
}

//****************************************END OF SLIDE CODE
function onlynumbers(evt) {
    evt = (evt) ? evt : window.event
    var charCode = (evt.which) ? evt.which : evt.keyCode
    if (charCode > 31 && (charCode < 48 || charCode > 57) && charCode != 46 && charCode != 44) {
        status = "This field accepts numbers only."
        return false
    }
    status = ""
    return true
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
	func();
     oldonload();
    }
  }
}

function prepareInputsForHints() {
	var inputs = document.getElementsByTagName("input");
	for (var i=0; i<inputs.length; i++){
		// test to see if the hint span exists first
		if(inputs[i].name != "verblijfsreg" && inputs[i].name != "dt_geb")
			{
			if (inputs[i].parentNode.getElementsByTagName("span")[0]) {
				// the span exists!  on focus, show the hint
				inputs[i].onfocus = function () {
					this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
					document.getElementById('slider-1').className = 'horizontal dynamic-slider-control slider';
				}
				// when the cursor moves away from the field, hide the hint
				inputs[i].onblur = function () {
					this.parentNode.getElementsByTagName("span")[0].style.display = "none";
					document.getElementById('slider-1').className = 'horizontal dynamic-slider-control slider';
				}
			}
		}
	}
	// repeat the same tests as above for selects
	var selects = document.getElementsByTagName("select");
	for (var k=0; k<selects.length; k++){
		if(selects[k].name != "verblijfsreg" && selects[k].name != "dt_geb")
			{
			if (selects[k].parentNode.getElementsByTagName("span")[0]) {
				selects[k].onfocus = function () {
					this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
					document.getElementById('slider-1').className = 'horizontal dynamic-slider-control slider';
				}
				selects[k].onblur = function () {
					this.parentNode.getElementsByTagName("span")[0].style.display = "none";
					document.getElementById('slider-1').className = 'horizontal dynamic-slider-control slider';
				}
			}
		}
	}
}
addLoadEvent(prepareInputsForHints);