function gotoPage(num){
	switch(num){
		case 0:
			toPage("company","");
			break;
		case 1:
			toPage("product"),"";
			break;
		case 2:
			toPage("tradeinfo","");
			break;
		case 3:
			toPage("contact","");
			break;
		case 4:
			toPage("link","");
			break;
		case 5:
			toPage("index","");
			break;
		case 6:
			//toPage("search","");
			toPage("index","");
			break;
		case 7:
			toPage("tradeinfo","");
			break;
		
		case 20:
			var a_tag = document.createElement("a");
			a_tag.style.behavior='url(#default#homepage)';
			a_tag.sethomepage(window.top.location);
			break;
		case 21:
			window.external.addFavorite(window.top.location,document.getElementsByTagName("title")[0].innerText);
			break;

		default:
			toPage("index","");
	}
}
function toPage(purl,addvalue){
	var pageurl = "" + purl + ".aspx";
	if (addvalue!=""&&addvalue!=undefined){
		pageurl = "" + pageurl + addvalue;
	}
	 
		window.location = "" + pageurl;
	 
}