function isChangeThisBackColor(form){
	form.style.backgroundColor = "#fff"
}

function isChangeBackColor(id){
	var node = document.getElementById(id);
	node.style.backgroundColor = "#fff"
}

function isSet(id){
	var node = document.getElementById(id);
	if (node.value == "") {
		node.style.backgroundColor = "#fc9";
	}
	else {
		node.style.backgroundColor = "#fff";
	}
}

function isValidateAddress(id){
	var color = "#fc9"
	var regexp = new RegExp("^[a-zA-Z0-9_\.\-]+?@[A-Za-z0-9_\.\-]+\.[A-Za-z0-9_\.\-]+$");
	var node = document.getElementById(id);
	var str = node.value;
	var result = regexp.test(str);
	if (result) {
		color = "#fff";
	}
	node.style.backgroundColor = color;
}

function isCheckAddress(id1,id2){
	var node1 = document.getElementById(id1);
	var node2 = document.getElementById(id2);
	var mail1 = node1.value;
	var mail2 = node2.value;
	if (mail1 != mail2) {
		node2.style.backgroundColor = "#fc9";
	}
}