<a href="#" onclick="this.innerHTML='我是第2个'">我是第1个</a>

<a href="#" onclick="this.innerText='我是第2个'">我是第1个</a>

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<a href="#" onclick="if(a){this.innerHTML='我是第2个';a=false};else{this.innerHTML='我是第1个';a=true}">我是第1个</a>

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<a href="###" onclick="if(a){this.innerHTML='4';a=false;parent.cnbruce.controls.pause()};else{this.innerHTML=';';a=true;parent.cnbruce.controls.play()}" style="font-size:12px; color:#000000;font-family:Webdings">;</a>