function mask(f){
	if (f.value.length==10 && f.value.search("-") == -1 && f.value.search(" ") == -1) {
		var oldValue=f.value;
		f.value="("+oldValue.substring(0,3)+")"+oldValue.substring(3,6)+"-"+oldValue.substring(6,10);
	}
	if (f.value.length==7 && f.value.search(" ") == -1) {
		var oldValue=f.value;
		f.value=oldValue.substring(0,3)+"-"+oldValue.substring(3,7);
	}
}

function preload(imgsrc) {
    if (document.images)
    {
      preload_image = new Image(); 
      preload_image.src=imgsrc;
    }
}


function doPreloadImages(){
	preload('/images/about-on.png');
	preload('/images/about-off.png');
	preload('/images/practice-on.png');
	preload('/images/practice-off.png');
	preload('/images/attorneys-off.png');
	preload('/images/attorneys-on.png');
	preload('/images/resources-on.png');
	preload('/images/resources-off.png');
	preload('/images/directions-on.png');
	preload('/images/directions-off.png');
	preload('/images/contact-on.png');
	preload('/images/contact-off.png');
}

function swapOn(curImage) {
	var newSrc=curImage.src.replace("-off","-on");
	curImage.src=newSrc;
	
}

function swapOff(curImage) {
	var newSrc=curImage.src.replace("-on","-off");
	curImage.src=newSrc;
}

function headerText(message) {
	var theSpan=document.getElementById("headertext");
	theSpan.innerHTML=message;
}