//--------------EXTERNAL PAGES----------------
function valSubmit() {
        
        var doc = document.forms[0];
        var msg = "";
        if (doc.Username.value == "") {
            msg += "- Please enter a username\n";
        }
        if (doc.Password.value == "") {
            msg += "- Please enter a password\n";
        }
        if (msg == "") {
            
            return true;
        } else {
            alert("The following errors were encountered\n" + msg);
            return false;
        } 
    }

function changeButtonIMG(element, imageLoc)
{
	//resources/images/buttons/register/default.png
	var imgHier_ar = element.src;
	imgHier_ar = imgHier_ar.split("/");
	imgHier_ar[imgHier_ar.length-1] = imageLoc + ".png";
 	
	var buildImgLoc="";
	for(var i=0; i<imgHier_ar.length; i++ )
	{
		if(i==0)
		{
			buildImgLoc=  imgHier_ar[i];
		}
		else
		{
			buildImgLoc+= "/" + imgHier_ar[i];
		}
	}
	element.src = buildImgLoc;
}