//******** LAYER MENU ********
var defaultColor=0;
var activeSub=0;
var SubNum=0;

function reDo(){ window.location.reload() }
    window.onresize = reDo;


    //Define global variables

	    var timerID = null;
		var timerOn = false;
		var timecount = 1000;
		var what = null;
		var newbrowser = true;
		var check = false;

    	function init(){
    	//  alert ("Running Init");
          if (document.layers) {
                      //  alert ("Running Netscape 4");
                        layerRef="document.layers";
                        styleSwitch="";
                        visibleVar="show";
			screenSize = window.innerWidth;
			what ="ns4";


          }else if(document.all){
                      //  alert ("Running IE");
                        layerRef="document.all";
                        styleSwitch=".style";
                        visibleVar="visible";
			screenSize = document.body.clientWidth + 18;
			what ="ie";

		  }else if(document.getElementById){
                      //  alert ("Running Netscape 6");
                        layerRef="document.getElementByID";
                        styleSwitch=".style";
                        visibleVar="visible";
			what="moz";

		  }else{
		  	//alert("Older than 4.0 browser.");
			what="none";
			newbrowser = false;
		  }


		window.status='Bienvenido a BIT-SISTEMAS';
		check = true;
  	 	}

	// Turns the layers on and off
        function showLayer(layerName){
        	if(check){
        		if (what =="none"){
        			return;
        			}
	        	else if (what == "moz"){
        			document.getElementById(layerName).style.visibility="visible";
        			}
        		else{
                  eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
                  }
		 }
        	else {// alert ("Please wait for the page to finish loading.");
        		return;}
		}

        function hideLayer(layerName){
        	if(check){
        		if (what =="none"){
        			return;
        			}
        		else if (what == "moz"){
        			document.getElementById(layerName).style.visibility="hidden";
        			}
        		else{
                  eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
				}

        	}
        	else {// alert ("Please wait for the page to finish loading.");
        		return;}
        }


		function hideAll(){
				hideLayer('layer1');
				hideLayer('layer2');
				hideLayer('layer3');
				hideLayer('layer4');
				}


		function startTime() {
	        if (timerOn == false) {
                timerID=setTimeout( "hideAll()" , timecount);
                timerOn = true;

	        }

		}


		function stopTime() {
	        if (timerOn) {
    	        clearTimeout(timerID);
                timerID = null;
                timerOn = false;
	        }
		}

		function onLoad(){
			init();

			}


//******** ABRIR POPUP ********
function abrirVentana(url, largo, ancho) {
  window.open(url,'nueva_ventana','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width='+largo+',height='+ancho);
}

//chequeo de browser
function checkBrowser(){
	this.ver=navigator.appVersion
	this.dom=document.getElementById?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
	return this
}
bw=new checkBrowser();


function mOvr(src,clrOver) {
	if (!src.contains(event.fromElement)) {
		defaultColor = src.bgColor;
		src.bgColor = clrOver;
	}
}

function mOut(src) {
	if (!src.contains(event.toElement)) {
		src.bgColor = defaultColor;
	}
}