Guyz,

I have 2 textboxes (PHP script) i need to validate them using Javascript. one textbox is to type date.. but the user should not be able to type a future date and press submit.

i wrote a javascript validation :

<script language="JavaScript">
        <!--
        function CompareDates(str1,str2) 
        { 
            var dt1  = parseInt(str1.substring(0,2),10); 
            var mon1 = parseInt(str1.substring(3,5),10); 
            var yr1  = parseInt(str1.substring(6,10),10); 
            var dt2  = parseInt(str2.substring(0,2),10); 
            var mon2 = parseInt(str2.substring(3,5),10); 
            var yr2  = parseInt(str2.substring(6,10),10); 
            var date1 = new Date(yr1, mon1, dt1); 
            var date2 = new Date(yr2, mon2, dt2); 
        
            if(date2 < date1) 
            { 
                return false; 
            } 
            else 
            { 
                return true; 
            } 
        } 
        function validate()
        {
            var str2 = document.getElementById("date").value; 
            
            var str1 = "23/10/2010"; 
            
            
            if (document.frm.date.value=="")
            {
                alert("Please enter date");
                document.frm.date.focus();
                return false;
            }
            else if (document.frm.number.value=="")
            {
                alert("Please enter number");
                document.frm.number.focus();
                return false;
            }            
            else if (eval(document.frm.number.value)<=0)
            {
                alert("Please enter number positive");
                document.frm.number.focus();
                return false;
            }
            else if (CompareDates(str1,str2))
            {
                alert("To date cannot be greater than from date"); 
                document.frm.date.focus();        
                return false; 
            }
            else
                return true;            
        }    
        //-->
        </script>

This works perfectly but the problem is validation takes current date from :

 var str1 = "23/10/2010";

i need that to be the system date so i dont have to change the str value everytime.. any help?

Thanks in advance

Sam

alert("To date cannot be greater than from date");

Surely a "To" data MUST be greater than a "from" date??

Hi,

its like this. there is only 1 text box to enter a date.. so the person should not be able to enter a future date (should be less than system date always)

problem solved

by replacing :

var str1 = "23/10/2010";

with

var date = new Date();
var str1 = date.getDate() + '/' + (date.getMonth() + 1) + '/' + date.getFullYear();

thanks anyways

Such a nice solution of javascript validation.