好看的按钮1 好看的按钮1 class=btn1_mouseout onmouseover= "this.className= 'btn1_mouseover ' " onmouseout= "this.className= 'btn1_mouseout ' " title= "好看的按钮 "> 好看的按钮2 class=btn1_mouseout onmouseover= "this.className= 'btn1_mouseover ' " onmouseout= "this.className= 'btn1_mouseout ' " DISABLED> 好看的按钮3 好看的按钮4 onmouseout= "this.className= 'btn3_mouseout ' " onmousedown= "this.className= 'btn3_mousedown ' " onmouseup= "this.className= 'btn3_mouseup ' " title= "好看的按钮 "> 好看的按钮5 好看的按钮6