window.onload = init;

function init() {
	if (Password = document.getElementById('comname')) {
	 	Password.style.backgroundImage = "url(http://solms.live.wcsite.universum.de/images/solms/portlet/name.gif)";
	 	Password.onfocus = emptyValue;
		Password.onblur = refillValue;
	}
}

function emptyValue() {
	if (Password) {
        Password.style.backgroundColor = "#FFFFFF";
		Password.style.backgroundImage = "none";
	}
}

function refillValue() {
	if (Password.value == "") {
		 Password.style.backgroundColor = "#FFFFFF";
   		 Password.style.backgroundImage = "url(http://solms.live.wcsite.universum.de/images/solms/portlet/name.gif)";
	}
}