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
//	
//   }
//