function chasearch() {
		if (document.searchform.key.value == 'Keywords' ) {
		alert("Please Input Keywords!");
		document.searchform.key.focus();
	    return false;
	}
	if (document.searchform.key.value == '' ) {
		alert("Please Input Keywords!");
		document.searchform.key.focus();
	    return false;
	}
}