// JavaScript Document

function photofader(nm, mainDiv, imgArr){
 this.name  = nm;
 this.imgArr = imgArr;
 this.curImg = 0;
 this.curDiv = 1;
 
 var mainDv = document.getElementById(mainDiv);
 
 document.pfObj = this;
 
 document.write("<style type='text/css'>\n");
 document.write("#pf_photo1 img { visibility:hidden; }\n");
 document.write("#pf_photo1 { position:absolute; z-index: 1; }\n");
 document.write("#pf_photo2 { position:absolute; z-index: 0; }\n");
 document.write("</style>");
 
 this.initImages = function() {
  document.write("<scr");
  document.write("ipt type='text/javascript'>\n");
  for(var i=0; i<this.imgArr.length; i++){
   document.write("var img"+i+" = new Image();\n");
   document.write("img"+i+".src = '"+ this.imgArr[i] +"';\n");
  }
  document.write("document.pfObj.start();\n");
  document.write("</scr");
  document.write("ipt>\n");
  
 }
 
 this.start = function(){
  var hldr1 = "pf_photo1";
  var hldr2 = "pf_photo2";
  
  var dv1 = document.createElement("div");
    dv1.id = "pf_photo1";
    dv1.innerHTML = "<img src='"+ imgArr[0] +"' />";
  var dv2 = document.createElement("div");
    dv2.id = "pf_photo2";
  
  mainDv.appendChild(dv1);
  mainDv.appendChild(dv2);
  
   image1 = document.getElementById(hldr1).childNodes[0];
  
   setOpacity(image1, 0);
   image1.style.visibility = 'visible';
   fadeIn(hldr1,0);
 }
 
 this.initImages();
}
 
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}
 
function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId).childNodes[0];
    if (opacity < 100) {
   speed = (speed < 2)?2:speed;
      setOpacity(obj, opacity);
   opacityDif = Math.ceil((100-opacity)/speed);
   opacity += opacityDif;
      //opacity += 2;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
  else
   setTimeout("swapImages()",delay*1000);
  }
}
 
function swapImages(){
 // find out which 
 if(document.pfObj.curImg == document.pfObj.imgArr.length-1)
  document.pfObj.curImg = 0;
 else 
  ++document.pfObj.curImg;
 
 // now get the div to hld the new image
 var dvName = (document.pfObj.curDiv == 1)?"pf_photo2":"pf_photo1";
 var eDivName  = (document.pfObj.curDiv == 1)?"pf_photo1":"pf_photo2";
 document.pfObj.curDiv = (document.pfObj.curDiv == 1)?2:1;
 
 var tgtDiv = document.getElementById(dvName);
 var eDiv = document.getElementById(eDivName);
 
 // now fill the target div
 tgtDiv.innerHTML = "<img src='"+ document.pfObj.imgArr[document.pfObj.curImg] +"' style='visibility:hidden;' />";
 
 //move the divs around in z-index
 eDiv.style.zIndex = 0;
 tgtDiv.style.zIndex = 1;
 
 // And finally fade in the image
 
  var img = tgtDiv.childNodes[0];
 
  setOpacity(img, 0);
  img.style.visibility = 'visible';
  fadeIn(tgtDiv.id,0);
}



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 isEmail(elm) {
    if (elm.value.indexOf("@") != "-1" &&
        elm.value.indexOf(".") != "-1") {
        return true;
    }
    else {
        return false;
    }
}

// Check for blank fields
function isFilled(elm) {
    if (elm.value == "" || elm.value == null) {
        return false;
    }
    else {
        return true;
    }
}

function isReady(form) {

      if (isFilled(form.name) == false) {        // A Last name?
        alert("Please enter your name.");
        form.name.focus();
        return false;
    }
   
  if (isEmail(form.email) == false) {          // A real email address?
        alert("Please enter a valid email address.");
        form.email.focus();
        return false;
    }


    return true;
}

function validemail(form) {

   
  if (isEmail(form.offers) == false) {          // A real email address?
        alert("Please enter a valid email address.");
        form.offers.focus();
        return false;
    }


    return true;
}