html - Changing the fontsize with javascript -


the code below adds <font size="x">$text</font> wysiwyg editor's textarea:

/** * set size context */ this.set_size_context = function(sizestate) {     if (this.buttons['fontsize'])     {         if (typeof sizestate == 'undefined')         {             sizestate = this.editdoc.querycommandvalue('fontsize');         }         switch (sizestate)         {             case null:             case '':             {                 if (is_moz)                 {                     sizestate = this.translate_fontsize(this.editdoc.body.style.fontsize);                 }             }             break;         }         if (sizestate != this.sizestate)         {             this.sizestate = sizestate;             var i;              if (this.popupmode)             {                 (i in this.sizeoptions)                 {                     if (yahoo.lang.hasownproperty(this.sizeoptions, i))                     {                         this.sizeoptions[i].style.display = (i == this.sizestate ? '' : 'none');                     }                 }             }             else             {                 (i = 0; < this.buttons['fontsize'].options.length; i++)                 {                     if (this.buttons['fontsize'].options[i].value == this.sizestate)                     {                         this.buttons['fontsize'].selectedindex = i;                         break;                     }                 }             }         }     } };

i replaced <font size tags <span style="font-size tags in php side , everthing working except fontsize dropdown menu , editor still adding <font size when choose font size list. (it's correctly converted <span style="font-size when message posted or previewed).

the question is, how code above generates <font size tag , how can replace <span style="font-size ?

below other related sections fontsize in js:

this.build_fontsize_popup = function(obj, menu) {     (var n in sizeoptions)     {         if (yahoo.lang.hasownproperty(sizeoptions, n))         {             var option = document.createelement('div');             option.innerhtml = '<span style="font-size:' + sizeoptions[n] + '">' + sizeoptions[n] + '</span>';              option.classname = 'osize';             option.style.textalign = 'center';             option.title = sizeoptions[n];             option.cmd = obj.cmd;             option.controlkey = obj.id;             option.editorid = this.editorid;             option.onmouseover = option.onmouseout = option.onmouseup = option.onmousedown = vb_text_editor_events.prototype.menuoption_onmouseevent;             option.onclick = vb_text_editor_events.prototype.formatting_option_onclick;             menu.appendchild(option);         }     } }

and

this.translate_fontsize = function(csssize) {     switch (csssize)     {         case '15px':         case '12px': return 1;         case '15px': return 2;         case '18px': return 3;         case '21px': return 4;         case '24px': return 5;         case '27px': return 6;         case '30px': return 7;         default:     return '';     } }

here complete js file: https://jsfiddle.net/07ttt9a7/

wading though full code, need fix 

case 'fontname':             {                 this.wrap_tags('font', argument);                 return;             }

to use 'span' instead of 'font'

or

modify function beginning 

this.wrap_tags = function(tagname, useoption, selection) {

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