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 SelectImageAt(imgsrc,width) {
    var strHTML;
    strHTML="<img src='"+imgsrc+"' width='"+width+"' />";
    document.all.ProductImage.innerHTML = strHTML;
    //document.getElementById("ProductImage").imgsrc = imgsrc;
    //alert(strHTML);
}

function SelectImageAt2(imgsrc) {
    var strHTML;
    strHTML="<img src='"+imgsrc+"' />";
    document.all.ProductImage.innerHTML = strHTML;
    //alert(strHTML);
}

function openPopupWindow(theURL,winName,features) {
   var newWin = window.open(theURL,winName,features);
   if (newWin != null) {
      newWin.opener=self;
      newWin.moveTo(0,0)
   }
}

function SearchFormConfirm(frm) {
    if (frm.SearchField.value == '') {
       alert('Please select a search field first.');
       frm.SearchField.focus();
       return false;
    }
    if (frm.SearchKeyword.value == '') {
       alert('Please type a search keyword.');
       frm.SearchKeyword.focus();
       return false;
    }
    return true;
}

function Confirm_SearchString(frm) {
    if (frm.SearchKeywordString.value=='') {
       alert("Enter a keyword for searching products.\nMecanografíe una palabra clave para buscar los productos.");
       frm.SearchKeywordString.focus();
       return false;
    }
    frm.submit();
}

function CheckEmailAddress(fieldValue) {
    if (fieldValue == "") {
       alert("Please enter a valid e-mail address.\nMecanografíe por favor una dirección válida de correo electrónico.");
       return false ;
    }
    else {
       var atSymbol = 0;
       for (var a = 0; a < fieldValue.length; a++) { // Look for @ symbol and increment atSymbol by 1 for each @ found
           if (fieldValue.charAt(a) == "@") {
              atSymbol++;
           }
       }
       if (atSymbol > 1) { // If more than one @ symbol exists
          alert("Please enter a valid e-mail address.\nMecanografíe por favor una dirección válida de correo electrónico.");
          return false;
       }
       if (atSymbol == 1 && fieldValue.charAt(0) != "@") {  // If one @ symbol was found and is not the 1st character in string?
          var period = fieldValue.indexOf(".",fieldValue.indexOf("@")+2);  // Look for a period at 2nd character after @ symbol
          var twoPeriods = (fieldValue.charAt((period+1)) == ".") ? true : false;  // "." immediately following 1st "." ?
          //if period was not found OR 2 periods together OR field contains less than 5 characters OR period is in last position
          if (period == -1 || twoPeriods || fieldValue.length < period + 2 || fieldValue.charAt(fieldValue.length-1)==".") {
             alert("Please enter a valid e-mail address.\nMecanografíe por favor una dirección válida de correo electrónico.") ;
             return false;
          }
       }
       else {
          alert("Please enter a valid e-mail address.\nMecanografíe por favor una dirección válida de correo electrónico.");
          return false;
       }
    }
    return true;
}

function showStuff(id) {
    document.getElementById(id).style.display = 'block';
}
function hideStuff(id) {
    document.getElementById(id).style.display = 'none';
}

function AllowNumberOnly() {
    if (event.keyCode < 48 || event.keyCode > 57) {
       event.returnValue = false;
    }
}

/* Image slideshow */
var slideimages=new Array();
var slidelinks=new Array();
function slideshowimages() {
    for (i=0; i<slideshowimages.arguments.length; i++) {
        slideimages[i]=new Image();
        slideimages[i].src=slideshowimages.arguments[i];
    }
}

function slideshowlinks() {
    for (i=0; i<slideshowlinks.arguments.length; i++)
        slidelinks[i]=slideshowlinks.arguments[i];
}

function gotoshow() {
   if (!window.winslide||winslide.closed) {
      winslide=window.open(slidelinks[whichlink]);
   }
   else {
      winslide.location=slidelinks[whichlink];
   }
   winslide.focus();
}