linkvalidation

function checkchar(txt)
{
var rt = true;
var iChars = "!@#$%^&*()+=-[]\\\';{}|\":<>?";

for (var i = 0; i < document.getElementById(txt).value.length; i++)
{
if (iChars.indexOf(document.getElementById(txt).value.charAt(i)) != -1)
{
rt = false;
}
}

return rt;
}

function checkurl(txt)
{
var rt = true;
var iChars = "!@#$%^&*()+=[]\\\';{}|\"<>?";

for (var i = 0; i < document.getElementById(txt).value.length; i++)
{
if (iChars.indexOf(document.getElementById(txt).value.charAt(i)) != -1)
{
rt = false;
}
}

return rt;
}
function isValidEmail(strEmail)
{
validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
strEmail = document.getElementById(strEmail).value;

// search email text for regular exp matches
if (strEmail.search(validRegExp) == -1)
{
return false;
}
return true;
}

function disp_alert()
{

var title=document.getElementById('title').value;

if(title.indexOf(" ")== 0)
{
alert("Please Enter valid Title");
return false;
}
else if(document.getElementById('title').value=="")
{
alert("Please Enter Your Title")
document.getElementById('title').focus();
return false;
}
else if (!checkchar('title'))
{
alert("Invalid Title Please re-enter.");
document.getElementById('title').focus();
return (false)
}

var url=document.getElementById('url').value;

if(url.indexOf(" ")== 0 && url.indexOf("http://")!=0)
{
alert("Please Enter valid url 1");
return false;
}
else if(document.getElementById('url').value=="")
{
alert("Please Enter Your URL 2")
document.getElementById('url').focus();
return false;
}
else if (!checkurl('url'))
{
alert("Invalid Url Please re-enter.");
document.getElementById('url').focus();
return (false)
}
if(document.getElementById('category').value=="")
{
alert("Please Select Your Category")
document.getElementById('category').focus();
return false;
}
if(document.getElementById('e_mail').value=="")
{
alert("Please enter your email");
document.getElementById('e_mail').focus();
return false;
}
else if(!isValidEmail('e_mail'))
{
alert("Please enter valid Email");
document.getElementById('e_mail').focus();
return (false)
}


var res_link=document.getElementById('res_link').value;

if(url.indexOf(" ")== 0 && url.indexOf("http://")!=0)
{
alert("Please Enter valid Reciprocal Link");
return false;
}
else if(document.getElementById('res_link').value=="")
{
alert("Please Enter Reciprocal Link")
document.getElementById('res_link').focus();
return false;
}
else if (!checkurl('res_link'))
{
alert("Invalid Res_link Please re-enter.");
document.getElementById('res_link').focus();
return (false)
}
return true;
}


//function alphachk()
//
//{
// if((event.keyCode<65 || event.keyCode>90) && event.keyCode != 190 && event.keyCode != 8 && event.keyCode != 37 && event.keyCode != 38 && event.keyCode != 39 && event.keyCode != 40 && event.keyCode != 46 && event.keyCode != 13 && event.keyCode != 116 && event.keyCode != 16 && (event.keyCode <96 || event.keyCode > 122) && event.keyCode != 9 && event.keyCode != 110) event.returnValue = false
//
// }
//