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Showing posts from December, 2007

Javascript Substring() Function Cross-Browser Differences

I found something interesting while working on some Javascript form submission code. The problem was that the form was only submitting in IE and not in FireFox. After some troubleshooting I was able to determine that the Substring function is different between the two browsers. Here is an example if you want to give it a try. <script language='javascript' type='text/javascript'> function controlSubmit(obj,act) {    obj.action = act;    alert(obj.action.substring(0,13));    if (obj.action.substring(0,13) == 'action.cfm') obj.submit(); } </script> <form>    <input type="button" value="one" onclick="controlSubmit(this.form,'admin.cfm');">    <input type="button" value="two" onclick="controlSubmit(this.form,'action.cfm');"> </form> You will notice that the first button will only display an alert on both browsers and the second button will display an alert