////////////////////////////////////////////////////////////////////////////////////////
//=============== LOGIN FORM CHECK  =================
function chklogin()
{	
	//Username compulsory
	if (isEmpty(frmlogin.username.value) || isWhitespace(frmlogin.username.value))
		{
		alert ("Enter Username");
		frmlogin.username.focus();
		return false;
		}

	//Password compulsory
	if (isEmpty(frmlogin.password.value) || isWhitespace(frmlogin.password.value))
		{
		alert("Enter Password");
		frmlogin.password.focus();
		return false;
		}
}

////////////////////////////////////////////////////////////////////////////////////////
//======= User create FORM CHECK  =================
function chkucreate()
{
	// Username compulsory
	if (isEmpty(frmuser.username.value) || isWhitespace(frmuser.username.value))
		{
		alert ("Enter Username");
		frmuser.username.focus();
		return false;
		}

	// Password compulsory
	if (isEmpty(frmuser.password.value) || isWhitespace(frmuser.password.value))
		{
		alert("Enter Password");
		frmuser.password.focus();
		return false;
		}

	// Varify Password compulsory
	if (isEmpty(frmuser.vpassword.value) || isWhitespace(frmuser.vpassword.value))
		{
		alert("Enter Varify Password, to confirm correct password");
		frmuser.vpassword.focus();
		return false;
		}

	// Password and Varify Password should be same
	if ((frmuser.password.value) != (frmuser.vpassword.value))
		{
		alert("Password and Varify Password doesn't match, Please enter Password and Varify Password again");
		frmuser.password.value = "";
		frmuser.vpassword.value = "";
		frmuser.password.focus();
		return false;
		}


	// Type of User compulsory
/*	if (isEmpty(frmuser.utype[frmuser.utype.selectedIndex].value) || isWhitespace(frmuser.utype[frmuser.utype.selectedIndex].value))
		{
		alert("Enter User Type");
		frmuser.utype.focus();
		return false;
		}
*/

	// email address valid 
	if (!isEmail(frmuser.emailaddress.value))
		{
		alert("Enter Valid Email Address");
		frmuser.emailaddress.focus();
		return false;
		}


}

//////////////// check navigation channel form //////////////////////
function chknd()
{	if(isEmpty(frmnd.ch_desc.value) || isWhitespace(frmnd.ch_desc.value))
	{
		alert("Enter Channel Description");
		frmnd.ch_desc.focus();
		return false;
	}
	
	if (! chknd_detail_desc() ) {return false;}
}


function chknd_detail_desc()
{	var elm = document.frmnd.elements;
	/*		
	retval = document.all('chd_desc');
	if (retval==null) {alert("Please Enter Details");addmore();frmnd.chd_desc.focus();return false;}
	*/
	if(frmnd.chd_desc.length==undefined)
		{
			if(isEmpty(elm.chd_desc.value) || isWhitespace(elm.chd_desc.value))
			{	alert("Enter Channel Detail Description");
				elm.chd_desc.focus();
				return false;
			}
		
		}
	else
		{
			for(i=0;i<elm.chd_desc.length;i++)
			{
				if(isEmpty(elm.chd_desc[i].value) || isWhitespace(elm.chd_desc[i].value))
				{
					alert("Enter Channel Detail Description");
					elm.chd_desc[i].focus();
					return false;
				}
			}
		}
	return true;
}

//-- DELETE CONFIRMATION FOR NAVIGATION //
function delconfirm(){
	if(confirm("Are You Sure?")==1)
		{ return true;}
	else
		{return false;}
}



//////////////// check navigation channel form //////////////////////
function chkcat()
{	if(isEmpty(frmcat.c_desc.value) || isWhitespace(frmcat.c_desc.value))
	{
		alert("Enter Category Description");
		frmcat.c_desc.focus();
		return false;
	}
	
	if (! chkscat_desc() ) {return false;}
}


function chkscat_desc()
{	var elm = document.frmcat.elements;
	/*
	//call the following 2 lines if , 1 detail entry is compulsory		
	retval = document.all('sc_desc');
	if (retval==null) {alert("Please Enter Details");addmore();frmcat.sc_desc.focus();return false;}
	*/

	if(frmcat.sc_desc.length==undefined)
		{
			if(isEmpty(elm.sc_desc.value) || isWhitespace(elm.sc_desc.value))
			{	alert("Enter Sub Category Description");
				elm.sc_desc.focus();
				return false;
			}
		
		}
	else
		{
			for(i=0;i<elm.sc_desc.length;i++)
			{
				if(isEmpty(elm.sc_desc[i].value) || isWhitespace(elm.sc_desc[i].value))
				{
					alert("Enter Sub Category Description");
					elm.sc_desc[i].focus();
					return false;
				}
			}
		}
	return true;
}

function chkblk()
{
return true;
}