双击禁止选中文本

//双击禁止选中文本
var clearSelection=function(){
        if(document.selection&&document.selection.empty){
            document.selection.empty();
        }else if(window.getSelection){
            var sel=window.getSelection();
            sel.removeAllRanges();
        }
    };
    //调用
    $(element).bind("dblclick",function(event){
        clearSelection();
    });