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];}
}

/**
 * Used on contact/index.php
 */
function verifyForm(form1)
{
    var x = document.forms[0].email.value;
    var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

    var invalid = " "; // Invalid character is a space
    var minLength = 8; // Minimum length

    if (form1.first_name.value == "")
    {
        alert("Please enter your first name.");
        form1.first_name.focus();
        return false;
    }
    else if (form1.last_name.value == "")
    {
        alert("Please enter your last name.");
        form1.last_name.focus();
        return false;
    }
    else if (form1.company_name.value == "")
    {
        alert("Please enter your company name.");
        form1.company_name.focus();
        return false;
    }
    else if (form1.services.value == "")
    {
        alert("Please specify the services you are interested in.");
        return false;
    }
    else if (form1.request.value == "")
    {
        alert("Please specify whether you would like to receive pricing info or an online demo.");
        return false;
    }
    else if (!(filter.test(x)))
    {
        alert('Please enter a valid e-mail address.');
        form1.email.focus();
        form1.email.value = "";
        return false;
    }

    return true;
}