Free Javascripts - Simple Javascript form validation

Simple Javascript form validation

Written by Nelson
Friday, 19 May 2006
A simple javascript can be used to validate any web from Easy to customized and to be used on forms Validates missing fields in a web form Require browser: any javascripts enabled Simple html form javascript validation demo Simple form Name: Email: Selection: Comments Step 1: Copy and paste the following code into your header section of the webpage with the web form which you want to validate. <SCRIPT LANGUAGE="JavaScript"> /*********************************************** * Freejavascriptkit.com * Visit http://www.freejavascriptkit.com for more free Javascripts source code ***********************************************/ function checkrequired(which) { var pass=true; if (document.images) { for (i=0;i<which.length;i++) { var tempobj=which.elements[i]; if (tempobj.name.substring(0,8)=="required") { if (((tempobj.type=="text"\|\|tempobj.type=="textarea")&& tempobj.value=='')\|\|(tempobj.type.toString().charAt(0)=="s"&& tempobj.selectedIndex==0)) { pass=false; break; } } } } if (!pass) { shortFieldName=tempobj.name.substring(8,30); alert("Please make sure the form "+shortFieldName+" field was properly completed."); return false; } else return true; } </script> This free javascript is provided by Free Javascripts
Last Updated ( Friday, 02 June 2006 )