//**************** swap image *****************************
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_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_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];}
}
//************ form contact *********************************
function submitForm(){
	if (document.formContact.txtName.value==""){
		alert ("Name is required")
	}
	else if (document.formContact.txtMail.value==""){
		alert ("Email is required")
	}
	else if (document.formContact.txtComments.value==""){
		alert ("Comments is required")
	}
	else {
            
            ajaxRequest('/lib/captcha/validate.php?action=ajax&captchaTxt='+document.formContact.captchaTxt.value,function(resp){
                
                if(resp=='true'){
                    document.formContact.submit();
                }
                else{
                    alert('Word doesn\'t match the image.');
                }
            });
            
	}
	/*
	else {
		document.formContact.submit()	
	}*/
}

function ajaxRequest(Url,functionAjax)
{
    var AJAX;
    try
    {
        AJAX = new XMLHttpRequest();
    }
    catch(e)
    {
      try
      {
            AJAX = new ActiveXObject("Msxml2.XMLHTTP");
      }
      catch(e)
      {
           try
           {
                AJAX = new ActiveXObject("Microsoft.XMLHTTP");
           }
           catch(e)
           {
                alert("Your browser does not support AJAX.");
                return false;
           }
      }
    }
    AJAX.onreadystatechange = function()
     {
          if(AJAX.readyState == 4)
          {
               if(AJAX.status == 200)
               {
                    functionAjax(AJAX.responseText);
               }
               else
               {
                    alert("Error: "+ AJAX.statusText +" "+ AJAX.status);
               }
          }
     }
     AJAX.open("get", Url, true);
     AJAX.send(null);
}