How to find element without use ID

Question

I have DOM element in array

this.object = 
     

     \"color1 
     text1         


        
      

Answer 1

You could use getElementsByClassName().

document.getElementsByClassName("color")[0];

But you have to remember two things: 1.) getElementsByClassName() is not fully cross-browser compatible. 2.) You have two know at what position your color element is. If you only using the class color once the example works perfectly.

Two solve issue 1.) you can use following workaround:

function getElementsByClassName(node, classname) {
    var a = [];
    var re = new RegExp('(^| )'+classname+'( |$)');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i