function clearDefaultandCSS(el) {
	if (el.defaultValue==el.value) el.value = ""
	// If Dynamic Style is supported, clear the style
	//if (el.style) el.style.cssText = ""
}

/*****************************************
* Dissolving Image Rollover- By Roy Whittle (http://www.javascript-fx.com/)
* Featured on/available at http://www.dynamicdrive.com/
* This notice must stay intact for use
*****************************************/

//Generate transition CSS (transition=0 to 23)
//document.write('<STYLE TYPE="text/css">.imgTrans{ filter:revealTrans(duration=0.4,transition=14) }</STYLE>');

//Uncomment the next line for fading rollovers instead of dissolving:
document.write('<STYLE TYPE="text/css">.imgTrans{ filter:blendTrans(duration=0.2) }</STYLE>');

var onImages=new Array();
function Rollover(imgName, imgSrc)
{
	onImages[imgName] = new Image();
	onImages[imgName].src = imgSrc;
}

function turnOn(imgName){ 
	if(document.images[imgName].filters != null)
		document.images[imgName].filters[0].apply();
	document.images[imgName].offSrc = document.images[imgName].src;
	document.images[imgName].src    = onImages[imgName].src;
	if(document.images[imgName].filters != null)
		document.images[imgName].filters[0].play();
}

function turnOff(imgName){ 
	if(document.images[imgName].filters != null)
		document.images[imgName].filters[0].stop();
	document.images[imgName].src = document.images[imgName].offSrc;
}

//Specify name of participating images, plus paths to their onMouseover replacements:
Rollover("television", "images/postcard/button-on-television.gif");
Rollover("internet", "images/postcard/button-on-internet.gif");
Rollover("telephone", "images/postcard/button-on-telephone.gif");
Rollover("business", "images/postcard/button-on-business.gif");
Rollover("security", "images/postcard/button-on-security.gif");