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      function Check()  
        {
            //弹出提示
            if(!confirm("确定要进行吗？"))
            {    
                return false;
            }
            else
            {
                ShowMessageBusing();
                return true;
            }
        } 
        
        function ShowMessageBusing()
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            for(ipos = 0; ipos <  document.body.childNodes.length;ipos++) 
            { document.body.childNodes[ipos].style.display = 'none';}
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                div.style.left = '300px';
                div.style.top = '250px';
                div.style.zIndex = '999';
                div.style.height = '40px';
                div.style.width = '360px';
                div.style.borderColor = '#33ccff';
                div.style.borderWidth = '1px';
                div.style.borderStyle = 'solid';
                div.style.textAlign = 'center';
                div.style.fontFamily = '宋体';
                div.style.fontWeight = 'bold';
                div.style.fontSize = '12px';
                div.style.backgroundColor = '#6699ff';
                document.body.appendChild(div);
                //div.style.left = (document.body.clientWidth-div.style.width.substring(0,div.style.width.length-2))/2;
                //div.style.top =  document.body.scrollTop+(document.body.clientHeight- div.style.height.substring(0,div.style.height.length-2)  )/2;
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