String.prototype.toTitleCase = function() {
var words = this.toLowerCase().split(" ");
for(var i=0;i<words.length;i++)
words[i] = words[i].charAt(0).toUpperCase() + words[i].substring(1);
return words.join(" ");
}

function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}
function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function popupWindow(whatURL) {
	poppedWindow=window.open(whatURL,"poppedWindow","toolbar=no,width=440,height=300,directories=no,status=no,scrollbars=yes,resize=no,menubar=no");
}

// Disable submit when clicked.
function disableSubmit(buttonName,formName) {
	var whichForm=eval('document.' + formName);
	var whichButton=eval('document.' + formName + '.' + buttonName);
	whichButton.disabled=true;
	whichButton.className='greybutton';
	whichForm.submit();
}

// Returns a handle to the named layer.

function getLayer(name) {

	if (document.layers) {
		return(document.layers[name]);
	}
	else {
		layer = document.getElementById(name);
		if (layer) {
			return(layer);
		} else {
			return(null);
		}
	}
}

// Hides the named layer

function hideLayer(name) {

	var layer = getLayer(name);

	if (layer.style) {
		layer.style.visibility="hidden";	
	} else {
		layer.visibility="hide";
	}

}

// Shows the named layer

function showLayer(name) {

	var layer = getLayer(name);

	if (layer.style) {
		layer.style.visibility="visible";	
	} else {
		layer.visibility="show";
	}

}