function shlayer(layer){
	var myLayer=document.getElementById(layer).style.display;
	if (myLayer==null) {
		return;
	}
	if (myLayer=="block") {
		document.getElementById(layer).style.display="none";
	} else {
		document.getElementById(layer).style.display="block";
	}
}

function allClear(id) {
	var obj = document.forms[id].elements;
	var ct = obj.length;

	for(i=0; i<ct; i++){
		//  alert(obj[i].type);
		if (obj[i].name=="all") {
			obj[i].value = "";
		} else {
			// relax;
		}
	}
	return false;
}