//菜单-----------------------
function menuFix() {
    var sfEls = document.getElementById("menu_type").getElementsByTagName("li");
    for (var i=0; i<sfEls.length; i++) {
        sfEls[i].onmouseover=function() {
        this.className+=(this.className.length>0? " ": "") + "sfhover";
        }
        sfEls[i].onMouseDown=function() {
        this.className+=(this.className.length>0? " ": "") + "sfhover";
        }
        sfEls[i].onMouseUp=function() {
        this.className+=(this.className.length>0? " ": "") + "sfhover";
        }
        sfEls[i].onmouseout=function() {
        this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), 
"");
        }
    }
}
window.onload=menuFix;
//div切换------------服务-------------
function div_item(modtag,modcontent,modk,Total) {
    for(i=1; i <Total+1; i++) {
      if (i==modk) {
        document.getElementById(modtag+i).className="div_On";document.getElementById(modcontent+i).className="item_content";}
      else {
        document.getElementById(modtag+i).className="div_No";document.getElementById(modcontent+i).className="item_content_none";}
    }
}
//div切换------------网站建设-------------
function div_web(modtag,modcontent,modk,Total) {
    for(i=1; i <Total+1; i++) {
      if (i==modk) {
        document.getElementById(modtag+i).className="div_On";document.getElementById(modcontent+i).className="web_content";}
      else {
document.getElementById(modtag+i).className="div_No";document.getElementById(modcontent+i).className="web_content_none";}
    }
}