function bgcheck() {
	
	if(document.getElementById('name').value != ""){
		document.getElementById('name').style.backgroundImage = 'none';
	}
	if(document.getElementById('email').value != ""){
		document.getElementById('email').style.backgroundImage = 'none';
	}
}

function bgImgName() {
	document.getElementById('name').style.backgroundImage = 'none';
}

function bgImgName2() {
	if(document.getElementById('name').value == "") {
		 document.getElementById('name').style.backgroundImage = "url('http://www.shinka-c.com/image/left_enterName.gif')";
	}
}

function bgImgEmail() {
	document.getElementById('email').style.backgroundImage = 'none';
}

function bgImgEmail2() {
	if(document.getElementById('email').value == "") {
		 document.getElementById('email').style.backgroundImage = "url('http://www.shinka-c.com/image/left_enterEmail.gif')";
	}
}