jquery - Javascript stops working on entering multiple class name -

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i simple problem here javascript. have js code use highlight rows in price table. issue if used multiple class names @ time stops working. example:

<div class="el1 someclass">hover not work in this</div>

<div class="el1">hover work in this</div>

the js: 

var classes = ["el1", "el2", "el3", "el4", "el5", "el6", "el7", "el8", "el9","el10","el11","el12", "el13","el14","el15","el16","el17","el18","el19","el20","el21","el22", "el23", "el24","el25" ]; //list of classes var elms = {}; var n = {}, nclasses = classes.length; function changecolor(classname, color) {     var curn = n[classname];     for(var = 0; < curn; ++) {         elms[classname][i].style.backgroundcolor = color;     } } for(var k = 0; k < nclasses; k ++) {     var curclass = classes[k];     elms[curclass] = document.getelementsbyclassname(curclass);     n[curclass] = elms[curclass].length;     var curn = n[curclass];     for(var = 0; < curn; ++) {         elms[curclass][i].onmouseover = function() {             changecolor(this.classname, "#dbdbdb");         };         elms[curclass][i].onmouseout = function() {             changecolor(this.classname, "transparent");         };     } };

can me out please, i'm newbie in js.

thanks ..

the classname property on dom element returns complete classname; is, if element has multiple classes (e.g. <div class="herp derp"></div>), classname = "herp derp".

if want call changecolor on each of these multiple classes, try this:

// first, change order of arguments on changecolor function can pre-apply color argument function changecolor(color, classname) {     var curn = n[classname];     for(var = 0; < curn; ++) {         elms[classname][i].style.backgroundcolor = color;     } }

now, can change how call changecolor

// now, called changecolor, this.classname.split(" ").foreach(changecolor.bind(null, "transparent")); // call changecolor on of classes of appropriate color ("transparent" or "#dbdbdb")

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