<script type =" text/javascript "> function validateForm(){ var b=document.forms["checkout"]["conditional_field_9-1"].value; var c=document.forms["checkout"]["conditional_field_11-1"].value; var d=document.forms["checkout"]["conditional_field_10-1"].value; var f=document.forms["checkout"]["conditional_field_5-1"].value; var g=document.forms["checkout"]["conditional_field_6-1"].value; var h=document.forms["checkout"]["conditional_field_1-1"].value; if (b==null || b=="",c==null || c=="",d==null || d=="",f==null || f=="",g==null || g=="",h==null || h=="") { alert("Please Fill All Required Field"); return false; } else { jQuery('body').addClass("sec-page"); } } </script>