function search_onfocus() {
    if (document.getElementById("q").value == "iCoolsoft Video Converter") {
        document.getElementById("q").value = "";
    }
}
function search_onblur() {
    if (document.getElementById("q").value == "") {
        document.getElementById("q").value = "iCoolsoft Video Converter";
    }
}
function submit_check() {
    if (document.getElementById("q").value == "") 
	{
        alert("Please Input Your Keywords.");
		document.getElementById("q").value = "";
		return false;
    } 
	else {
	document.searchform.submit();}
}