function clearDisplay(name, totalNum) {	
	 var tabid = name;
	 for(i = 1; i <= totalNum; i++){
	 	tabid = name + i;
	 	document.getElementById(tabid).style.display = "none";
	 }
}

function tab(contentName, num, totalNum) {
	var tabid = contentName + num;
	clearDisplay(contentName, totalNum);
	document.getElementById(tabid).style.display = "block";
}

function setBold(tagTitle, tagName, num, totalNum){
	var tagid;
	var title;
	for(i = 1; i <= totalNum; i++){
	 	tagid = tagName + i;
	 	title = tagTitle + i;
	 	document.getElementById(tagid).style.fontWeight = "normal";
	 	document.getElementById(title).style.backgroundImage = "url(http://www.gdhytv.com/images/newIndex/skins/skin_2.gif)"; 	
	}
	tagid = tagName + num;
	title = tagTitle + num;
	document.getElementById(tagid).style.fontWeight = "bold";
	if(tagid=='rtModelOne_1_1')
		document.getElementById(title).style.backgroundImage = "url(http://www.gdhytv.com/images/newIndex/skins/skin_3l.gif)";
	else
		document.getElementById(title).style.backgroundImage = "url(http://www.gdhytv.com/images/newIndex/skins/skin_3.gif)";
}

function test() {
	alert("hi this is a test");
}