// general javascript support functions
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];}
}

MM_preloadImages('images\\portalhomebutton_OVER.gif','images\\myaccountsbutton_OVER.gif');

// cookie get and set functions
function setCookie (name, value, expires)
{
    if (!expires) expires = new Date();
    document.cookie = name + "=" + escape (value) + "; expires=" + expires.toGMTString() +  "; path=/";
}

function getCookie (name)
{
    var dcookie = document.cookie;
    var cname = name + "=";
    var clen = dcookie.length;
    var cbegin = 0;
    	while (cbegin < clen)
    	{
    	var vbegin = cbegin + cname.length;
    	    if (dcookie.substring(cbegin, vbegin) == cname)
    	    {
    	    var vend = dcookie.indexOf (";", vbegin);
    	        if (vend == -1) vend = clen;
    	    return unescape(dcookie.substring(vbegin, vend));
    	    }
    	cbegin = dcookie.indexOf(" ", cbegin) + 1;
    	    if (cbegin == 0) break;
    	}
    return null;
}

// form validation
function validateForm(form)
{
    for(var i=0; i<form.elements.length; i++)
    {
        if (form.elements[i].required == "yes" && form.elements[i].value == "")
        {
            alert('Please enter ' + form.elements[i].name);
            return false;
        }
    }
    return true;
}