document.onmousedown=combocloser;

function combocloser(mEvent){
	myelmt = (window.attachEvent)?(window.event.srcElement):(mEvent.target);
	if (myelmt.className!="") {
		switch(myelmt.className){
			case "tdcombo":
				switch(myelmt.id){
					case "comboBox":
						with(document.getElementById("comboContentContainer")){style.display=(style.display=="none" || style.display=="")?"block":"none"};
					break;

					case "comboBox2":
						with(document.getElementById("comboContentContainer2")){style.display=(style.display=="none" || style.display=="")?"block":"none"};
					break;
				}
			break;
		}
	}
	else {
		if (document.getElementById("comboContentContainer") != null) {
			document.getElementById("comboContentContainer").style.display="none";
		}
		if (document.getElementById("comboContentContainer2") != null) {
			document.getElementById("comboContentContainer2").style.display="none";
		}
	}
}