function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function Check(obj) {
	var k=obj.Keyword.value;
	var tp=document.all.SearchType;
	var st;
	for (var i=0;i<tp.length;i++) {
		if (tp[i].checked==true) {
			st=tp[i].value;
		}
	}
	if (k=="请输入您感兴趣的信息!" || k=="") {
		alert('请输入要搜索的关键字');
		return false;
	}
	switch (parseInt(st)){
		case 1:	//供应
			window.open('search_sca.asp?key=sca&word='+k);
			break;
		case 2:	//求购
			window.open('search_buy.asp?key=buy&word='+k);
			break;
		case 3:	//产品
			window.open('search_cp.asp?key=cp&word='+k);
			break;
		case 4:	//企业
			window.open('search_yp.asp?key=yp&word='+k);
			break;
		case 5:	//报价
			window.open('search_price.asp?key=price&word='+k);
			break;
		default:
			alert('请选择要搜索的频道');
			break;
	}
	return false;
}