// This allows the Enter key to be used after a keyword is entered
// in the search textbox.
function enterToSearch(button, event) {
    var keyID;
    
    if (!event) {
        var event = window.event;
    }
    if (event.keyCode) {
        keyID = event.keyCode;
    }
    else if (event.which) {
        keyID = event.which;
    }
    
    if (keyID == 13) {
        event.returnValue = false;
	    event.cancel = true;
	    document.getElementById(button).click();
    }
}