Javascript Client Side Page Validation

// In .cs file …

btn_register.Attributes.Add("onclick", "javascript:return ValidateForm()");

=======================================

// In .aspx file in script …

function ValidateForm()

{

//debugger

var p = document.getElementById( "ctl00_ContentPlaceHolder1_txt_phone").value;

var q = document.getElementById ("ctl00_ContentPlaceHolder1_Check_accept");

var fname = document.getElementById ("ctl00_ContentPlaceHolder1_txt_firstname");

var email = document.getElementById ("ctl00_ContentPlaceHolder1_txt_email_id");

var pwd = document.getElementById ("ctl00_ContentPlaceHolder1_txt_password");

if(fname.value=="")

{

alert("Please Enter First Name.")

return false

}

else if(email.value=="")

{

alert("Please Enter Email-ID.")

return false

}

else if(pwd.value=="")

{

alert("Please Enter Password.")

return false

}

else if(!q.checked)

{

alert("You Must Agree Terms \& Conditions To Get Registered.")

return false

}

else if ( document.getElementById (" ctl00_ContentPlaceHolder1_txt_phone" )!="")

{

var num=" ";

chkD = 0

if(p > "")

{

num = p;

}

for (var i = 0; i <>

{

var oneChar = num.charAt(i)

if (oneChar == "." && chkD == 0)

{

chkD = 1

continue

}

if (oneChar < "0" || oneChar > "9")

{

alert("Please Enter Some Valid Phone Numbers.")

return false

}

}

}

}

-
ShriKrishna Bhardwaj , With ASP.Net, SQL Server, Javascript