function showProductImage(product,width,height) {
	
	width = width + 40;
	height = height + 30;
	
	var windowX = (screen.width/2)-(width/2);
	var windowY = (screen.height/2)-(height/2);

	myImagePopup=window.open('popup.php?product='+product,'myImagePopup','width='+width+',height='+height+',left='+windowX+',top='+windowY+',scrollbars=yes,resizable=no,location=no,directories=no,status=no,menubar=no');
	myImagePopup.focus();
	return false;
}

function ValidateLogin(form) {

   if(IsEmpty(form.loginname)) 
   { 
      alert('Enter a login name and password to enter') ;
      form.loginname.focus(); 
      return false; 
   } 

   if(IsEmpty(form.loginpassword)) 
   { 
      alert('Enter a login name and password to enter') ;
      form.loginpassword.focus(); 
      return false; 
   } 
}
 
function IsNumeric(sText) {

   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}

function checkMail(sEmail) {

	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(sEmail)) return true;
}

function IsEmpty(aTextField) {
   if ((aTextField.value.length==0) ||
   (aTextField.value==null)) {
      return true;
   }
   else { return false; }
}

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) { //v4.0
  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 && document.getElementById) x=document.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];}
}