function loadImgs() {
	if(document.images) {
		
	//Preloading buttons
	pic1=new Image(9,28);
	pic1.src="images/hww_bt_arrows.gif";
	}
}

function chngImg(img_name, img_url) {
	document[img_name].src=img_url;
}



var submitcount=0;

function SubmitOnce() 
{
    if (submitcount == 0)
       {
       submitcount++;
       return true;
       }
    else
       {
       alert("This page has already been submitted.  Please wait while your request is being processed.");
       return false;
       }
 }