How to Call multiple time function in java scrip

Question

below is my code i want to know to how to work on every onclick function it is working one time but i want to know to work multipletime please help me--

 

 

<script language="javascript">

function enbrow() {

alert("enable first row");

document.getElementById("firstrw").style.display = "block";

}

</script>

<img src="http://findicons.com/files/icons/1007/crystal_like/128/plus.png" width="25" height="25" style="margin-top:5px;" onclick="enbrow();">

 

<img src="http://findicons.com/files/icons/1007/crystal_like/128/plus.png" width="25" height="25" style="margin-top:5px;" onclick="one();"> 

 

  <img src="http://findicons.com/files/icons/1007/crystal_like/128/plus.png" width="25" height="25" style="margin-top:5px;" onclick="two();"> 

 

 

<img src="http://findicons.com/files/icons/1007/crystal_like/128/plus.png" width="25" height="25" style="margin-top:5px;" onclick="three();"> 

 

 

 

 

 

i want to know work on every onclick function if i want more onclick function i will cork so please help me