var search = document.getElementById('search');
var blank = true;
search.style.color = 'grey';
search.value = 'Search';
search.onblur = function() {
	if (blank) {
		this.style.color = 'gray';
		this.value = 'Search';
	}
}

search.onfocus = function() {
	if (blank) {
		this.style.color = 'black';
		this.value = '';
	}
}

search.onchange = function() {
	if (this.value == '') blank = true;
	else blank = false;
}