/********************************** FMD UTILITIES **********************************/
/* Version: 1.0                                                                    */
/* Copyright (c) 2003 Flying Machine Development, All Rights Reserved              */
/* Contact: info@flyingmachinedevelopment.com                                      */
/***********************************************************************************/


/************************************ constants ************************************/

  DOM_SUPPORT = (document.getElementById)?1:0;
  BRWSR_NS4 = (document.layers)?1:0;
  BRWSR_IE = (document.all)?1:0;
  BRWSR_IE4 = BRWSR_IE && !DOM_SUPPORT;
  BRWSR_MOZ = !BRWSR_IE && DOM_SUPPORT;
  BRWSR_OTHER = !BRWSR_IE && !BRWSR_NS4 && !BRWSR_MOZ;
  OS_MAC = (navigator.appVersion.indexOf("Mac")>=0);
  OS_WIN = (navigator.appVersion.indexOf("Win")>=0);
  OS_OTHER = (!OS_MAC&&!OS_WIN);
 
/*********************************** string utils **********************************/


  document.browserID=(BRWSR_NS4)?"NS4":(BRWSR_IE4)?"IE4":(BRWSR_MOZ)?"MOZ":(BRWSR_IE)?"IE":"OTHER";

  function isBrowser(b){if(b.indexOf("|") >=0){var a=b.split("|"); 
    for(var i=0;i<a.length;i++){ if(document.browserID==a[i].toUpperCase()) return true;}}
    if(document.browserID==b) return true; return false;
  }
  String.prototype.trim = function(){
    return this.replace(/(^\s*)|(\s*$)/g, "");
  }
  
  String.prototype.toTitleCase = function(){
    var s,c; c = this.charAt(0); s = c.toUpperCase();      
    for (n=1; n< this.length; n++) {c = this.charAt(n); if (this.charAt(n-1) == " "){
    s=  s+c.toUpperCase();} else {s=s+c.toLowerCase();}}return s;
  }
  
  String.prototype.URIencode = function(){
    return escape(this);
  }
  
  String.prototype.URIdecode = function(){
    return unescape(this);
  }
  
/*********************************** number utils **********************************/
  
  Number.prototype.round = function(a){
    a=(!a?0:a);return Math.round(this * Math.pow(10,a))/Math.pow(10,a);
  }
  
  Number.prototype.toCurrency = function(){
    var c=this.round() + '';c=(c.charAt(0)=='.'?'0'+c:c);if (c.charAt(c.length-3)=='.'){
    return c;}else if(c.charAt(c.length-2)=='.'){return c+'0';} else {return c+'.00';}
  }
  
/*********************************** image utils ***********************************/
  
  function preloadImages() {
    var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
  }
  
  // ** make swap image and restore capable of storing multiple "swapped" images in 
  // different registers.
  
  function swapImage() {
    var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
    if ((x=findElement(a[i]))){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
  }
  
  function swapImgRestore() {
    var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
  }

  function setImage(n, i) {
    var e; if ((e=findElement(n))){e.src=i;}
  }
  
  function rotateImages() {
    var i,a=rotateImages.arguments;x=findElement(a[0]);if(!x.timer){
    x.images=new Array();for(i=2;i<a.length;i++){x.images[i-2]=a[i];}x.timer=a[1];x.curImage=-1;}
    x.curImage++;if(x.curImage==x.images.length)x.curImage=0;x.src=x.images[x.curImage];
    setTimeout('rotateImages("' + x.name + '")',x.timer);
  }
  
/******************************* querystring utils *********************************/
  
  function getArgs() {
    var args=new Object();var query=location.search.substring(1);
    var pairs=query.split("&");for(var i = 0; i < pairs.length; i++) {
  	var pos = pairs[i].indexOf('='); 	if (pos == -1) continue;                 
  	var argname = pairs[i].substring(0,pos).toLowerCase(); var value = pairs[i].substring(pos+1);   
  	args[argname] = value.URIdecode();} return args; 
  }
  
  function getArg(argname)
  {
    argname=argname.toLowerCase().replace(" ","+");var args = getArgs();if(args[argname]){
    return args[argname].replace(/\+/g," ");}else{return "";}
  }
  
/****************************** positioning utils **********************************/


  function findElement(n, d) {
    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=findElement(n,d.layers[i].document); 
    if(!x && document.getElementById) x=document.getElementById(n); return x;
  }

  function positionElement(e, x, y){if(e.moveToAbsolute){e.moveToAbsolute(x,y);}else if(e.style.left)
  {e.style.left=(x + "px");e.style.top=(y + "px")}else{e.left=x;e.top=y;}
  }   

  function getElementTop(e){
    if(e.offsetTop){var y=e.offsetTop;var p=e;while(p=p.offsetParent){
    y+=p.offsetTop}}else if(e.y){var y=e.y}else{y=0}return y;
  }

  function getElementLeft(e){
    if(e.offsetLeft){var x=e.offsetLeft;var p=e;while(p=p.offsetParent){
    x+=p.offsetLeft}}else if(e.x){var x=e.x;}else{x=0}return x;
  }

  function showElement(e){e.visibility='show';if(e.style)e.style.visibility='visible';}

  function hideElement(e){e.visibility = 'hide';if(e.style)e.style.visibility = 'hidden';}   

  function resizeElement(e, x, y, d){e.width=x;e.height=y;e.style.width=x;e.style.height=y;}   

  function writeHTML(n, s, d){
    var e=findElement(n,d);if(e.open){e.open();e.document.write(s);e.close();
    } else{e.innerHTML = s;}
  }

  function setColor(n, c){var e=findElement(n);e.backgroundcolor=c;e.style.backgroundColor=c;}

  function getElementRight(e){var x=getElementLeft(e) + e.offsetWidth;return x;}

  function getElementBottom(e){var y=getElementTop(e) + e.offsetHeight;return y;}

  function isInside(e, x, y, d){
    return((x-2)>getElementLeft(e) && (x+2)<getElementRight(e) && (y-2)>getElementTop(e)
    && (y+2)<getElementBottom(e));
  }

  function getEventPageX(){if(document.domEvent) return document.domEvent.clientX; 
    if(event.pageX)return event.pageX;else return event.clientX;
  }
  function getEventPageY(){if(document.domEvent) return document.domEvent.clientY; 
    if(event.pageY)return event.pageY;else return event.clientY;
  }

/******************************* error functions ***********************************/
    
  function suppressErrors(m,u,l){return true;}
  
  function showErrors(m,u,l){return false;}
  

/******************************** date functions ***********************************/

	function curDate()	{
		var days = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday");
		var d=new Date();	var day=days[d.getDay()-0];	return day.toUpperCase() + " " + 
		(d.getMonth()+1) + "." + (d.getDate()) + "." + (d.getYear());	
	}


  /******************************** popup functions **********************************/

  function showPopup(u, w, h, r, s)
  {
    var args = 'width=' + w + ',height=' + h + ',top=' + (screen.availHeight-h)*.5
    + ',left=' + (screen.availWidth-w)*.5; if(r) args+=',resizable=yes'; 
    if(s) args+=',scrollbars=yes'; window.open(u, "popup",args);
  }

  /******************************** rollover functions *******************************/

  function showRolloverImage(n, i1, i2, u, cp, t) {
    document.write('<a href="' + u + '"' + (t?' target="' + t + '"':'') +  ' onMouseOut="swapImgRestore()" onMouseOver="swapImage(\'' + n + '\',\'\',\'' + i2 + '\',1)"><img name="' + n + '" src="' + i1 + '" border="0"></a>');
  }

  function showRolloverText() {
    ;
  }

  /********************************* cookie functions ********************************/

   function fixDate(date) 
   {
      var base = new Date(0);
      var skew = base.getTime();
      if (skew > 0)
         date.setTime(date.getTime() - skew);
   }

   function setCookie(name, value, expires, path, domain, secure) 
   {
   		var curCookie = name + "=" + escape(value) +
         ((expires) ? "; expires=" + expires.toGMTString() : "") +
         ((path) ? "; path=" + path : "") +
         ((domain) ? "; domain=" + domain : "") +
         ((secure) ? "; secure" : "");
	
        document.cookie = curCookie;
   }

   function getCookie(name) 
   {
      var prefix = name + "=";
      var cookieStartIndex = document.cookie.indexOf(prefix);
      if (cookieStartIndex == -1)
         return null;
      var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex +
         prefix.length);
      if (cookieEndIndex == -1)
         cookieEndIndex = document.cookie.length;
      return unescape(document.cookie.substring(cookieStartIndex +
         prefix.length,
   		cookieEndIndex));
   }

  function cookiesEnabled()
  {
    testValue=Math.floor(1000*Math.random());
    setCookie('cookiesEnabled',testValue);
    return(testValue==getCookie('cookiesEnabled')) 
  }

  function saveFormToCookie(sform)
  {   
    var scookie="";
    var f=document.forms[sform];

    for(var n=0;n<f.elements.length;n++)
    {
      if(!f[f[n].name].length || f[n].type.substr(0,6).toLowerCase()=="select")
      {
        if(f[n].type.toLowerCase()=="checkbox" || f[n].type.toLowerCase()=="radio")
        {
          scookie+= "f." + f[n].name + ".checked=" + f[n].checked.toString() + ";";
        }        
        else
        {
          scookie+= "f." + f[n].name + ".value='" + f[n].value.toString() + "';";
        }
      }
      else if(scookie.search(f[n].name)<0)
      {
        for(var i=0;i<f[f[n].name].length;i++)
        {
          if(f[n].type.toLowerCase()=="checkbox" || f[n].type.toLowerCase()=="radio")
          {
            scookie+= "f." + f[n].name + "[" + i + "].checked=" + f[f[n].name][i].checked.toString() + ";";
          }        
          else
          {
            scookie+= "f." + f[n].name + "[" + i + "].value='" + f[f[n].name][i].value.toString() + "';";
          }
        }
      }
    }
    //alert(f.name)
    //alert(scookie)
    setCookie(f.name,scookie);
  }

  function getFormFromCookie(sform)
  {   
    var f=document.forms[sform];
    window.onerror=suppressErrors;
    eval(getCookie(f.name));
    window.onerror=showErrors;
  }
  

/******************************** random functions *******************************/


  function genID(len)
  {
    var szID="";
    
    for(var n=0;n<len;n++)
    {
      
      // determine next byte type (alpha/numeric)
      if(parseInt(2 * Math.random() + 1) == 1)
      {
        szID += String.fromCharCode(parseInt(10 * Math.random()) + 48);
      }
      else
      {
        szID += String.fromCharCode(parseInt(26 * Math.random()) + 65);
      }
         
    }    
    return szID;
  
  }