Ciao,
prova così:
Codice PHP:
<style>
.class_btn{border:1px solid red;}
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js"></script>
<script type="text/javascript">
function myfunction(btnId,type){
//mio codice
$("#"+btnId).addClass("class_btn");
}
</script>
<input id='btn1' type="button" value="prov1" onclick="myfunction(this.id,2)" class="style" >
<input id='btn2' type="button" value="prov2" onclick="myfunction(this.id,3)" class="style" >
<input id='btn3' type="button" value="prov3" onclick="myfunction(this.id,4)" class="style" >
<input id='btn4' type="button" value="prov4" onclick="myfunction(this.id,5)" class="style" >
<input id='btn5' type="button" value="prov5" onclick="myfunction(this.id,6)" class="style" >
<input id='btn6' type="button" value="prov6" onclick="myfunction(this.id,7)" class="style" >
<input id='btn7' type="button" value="prov7" onclick="myfunction(this.id,8)" class="style" >