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dhtmlxcombo

## Operations with combobox

1. Show/Hide combo as

           combo.show(mode);

2. Enable/Disable readonly mode as

           combo.readonly(mode);

3. Enable/Disable disabled mode as

           combo.disable(mode);

#### Accessing combo elements

You can access the input element of the combo as combo.DOMelem_input . Direct access to the element allows to assign custom event handlers. The next code for example limits input in combo, allowing only digits

    		dhtmlxEvent(combo.DOMelem_input, "keypress", function(e){
    			e = e||event;
    			var code = e.which||e.keyCode;
    			if (code >=48 && code < 58) return true;

    			e.cancelBubble=true;
    			if (e.preventDefault) e.preventDefault();
    			return false;
    		});