//show layered text//

var timerID;

function show_txt(n){

	if(timerID){
		clearTimeout(timerID);
	}

	for(i=0;i<=5;i++){
		obj = document.getElementById('nav'+i+'_sub_txt').style;
		obj.display = "none";
	}

	//changeOpac(0,'nav'+n+'_sub_txt');
	obj = document.getElementById('nav'+n+'_sub_txt').style;
	obj.display = 'block';
	//fadetext('nav'+n+'_sub_txt');  //fade looks bad in ie7

}

function set_default(){

	timerID = setTimeout("show_txt(0)", 6000);

}

//text fade//
var fade_val=0; // Initial color value.

function fadetext(id){
	if(fade_val<100) { //If color is not black yet
		fade_val+=5; // increase color darkness
		changeOpac(fade_val,id);
		setTimeout("fadetext('"+id+"')",10);
	}else{
		fade_val=0;
	}

}

function changeOpac(opacity, id) {
	var object = document.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function MM_swapImgRestore() { //v3.0

  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;

}



function MM_preloadImages() { //v3.0

  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();

    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)

    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}

}



function MM_findObj(n, d) { //v4.01

  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {

    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}

  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];

  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);

  if(!x && d.getElementById) x=d.getElementById(n); return x;

}



function MM_swapImage() { //v3.0

  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)

   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}

}



function MM_showHideLayers() { //v3.0

var i,p,v,obj,args=MM_showHideLayers.arguments;

for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];

if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }

obj.visibility=v; }

}



function MM_displayLayers() { //v3.0

var i,p,v,obj,args=MM_displayLayers.arguments;

for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];

if (obj.style) { obj=obj.style; v=(v=='show')?'block':(v='hide')?'none':v; }

obj.display=v; }

}

for(i=1;i<=5;i++){  //preload the main nav//
	MM_preloadImages('../images/ft_nav_'+i+'_over.gif');
}


  /* create pop up! */
function feedback(url) {
          if (document.all)
          var xMax = screen.width, yMax = screen.height;
          else
          if (document.layers)
          var xMax = window.outerWidth, yMax = window.outerHeight;
          else
          var xMax = 640, yMax=480;

          var xOffset = (xMax - 450)/2, yOffset = (yMax - 370)/2;

          windowHandle = window.open(url,'','top='+yOffset+',left='+xOffset+',toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=430,height=370');
         }



function getRadioValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}

/*------------------- IS NUMERIC for text form feilds-------------------------------*/
//how to use: onkeypress="return numbersonly(this, event)"
function numbersonly(myfield, e, dec){
	var key;
	var keychar;

	if (window.event){
		key = window.event.keyCode;
	}else if (e){
		key = e.which;
	}else{
		return true;
	}

	keychar = String.fromCharCode(key);
	// control keys
	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) ){
		return true;
	}else if ((("0123456789").indexOf(keychar) > -1)) {// numbers

		return true;
	}else if (dec && (keychar == ".")) {  // decimal point jump
		myfield.form.elements[dec].focus();
		return false;
	}else{
		return false;
	}
}