function flashin(id){
	myimg=document.getElementById(id);
	myimg.src='img/sign.gif';
}
function flashout(id){
	window.setTimeout("resetflashimg("+id+");", 500);
}
function resetflashimg(id){
	myimg=document.getElementById(id);
	myimg.src='img/pixel.gif';
}


function imgpreload(){
image1 = new Image();
image1.src = "img/sign.gif";
}