//Ñ¡ÏµÄÇл»
function getObject(objectId) {
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId);
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId);
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
}

function SelectOption(objHead1,objHead2,n,count){
	for( i=1; i<=count; i++){
		if(i == n){
			getObject(objHead1+i).className = objHead1 +"Yes";
			getObject(objHead1+objHead2+i).style.display = "block";
		}else{
			getObject(objHead1+i).className = objHead1 +"No";
			getObject(objHead1+objHead2+i).style.display = "none";
		}
	}
}
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