// Contact us
	function chksvalue(form)
	{
		var nm=form.name.value;
		var eml=form.email.value;
		 var mob=form.mobile.value;
                var sug=form.comment.value;

		/*For names*/
		if (nm=="")//for blanks
		{
			alert("Please, enter your name.");
			form.txtname.focus();
			return false;
		}

		/*For email*/
		if(eml=="")//for blanks
		{
			alert("Please, enter your email address.");
			form.txtemail.focus();
			return false;
		}
		if(isEmail(eml)=="")//for email address format
		{
			alert("Please, enter your email address.");
			form.txtemail.focus();
			return false;
		}
                /* mobile */
        	   if (mob=="")//for blanks
		{
			alert("Please, enter your Mobile.");
			form.txtmob.focus();
			return false;
		}

	}
		/*For suggestions*/
		if(sug=="")//for blanks
		{
			alert("Please, enter your message.");
			form.txtmessage.focus();
			return false;
		}