//下拉菜单样式

        /*查找全部select的下拉菜单*/

        function getElemsById(cot_val){

            return document.getElementById(cot_val);

        }

        var sel= getElemsById("c_select");

        var wrap= getElemsById("sel_wrap");

        var result=wrap.getElementsByTagName("span");

        sel.onchange=function(){

            var opt=this.getElementsByTagName("option");

            var len=opt.length;

            for(i=0;i<len;i++){

                if(opt[i].selected==true){

                    var cot_val = opt[i].innerHTML;

                }

            }

            result[0].innerHTML = cot_val;

        }

        /*查找文本查找图片*/

        var sel_two = getElemsById("c_select_two");

        var result_two = getElemsById("spl");

        sel_two.onchange=function(){

            var opts=this.getElementsByTagName("option");

            var lens=opts.length;

            for(i=0;i<lens;i++){

                if(opts[i].selected==true){

                    var cot_vals = opts[i].innerHTML;

                }

            }

            result_two.innerHTML = cot_vals;

        }