function convalidate1()
			  {
				  if(document.contact_us.conusrname.value <= 0)	{
		          alert("Please enter your User Name");
				  document.contact_us.conusrname.focus();
		          return false;
			      }
				    var emailStr = document.contact_us.conmail.value;
			       if(document.contact_us.conmail.value <= 0)	{
		           alert("Please enter your email Address");
				   document.contact_us.conmail.focus();
		           return false;
			       }  
				   if(document.contact_us.conmail.value.length >= 1)	{
		           var emailPat = /^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,3})$/;
				    var matchArray = emailStr.match(emailPat);
		          if (matchArray == null) 	{
		          alert("Your email address appears incorrect.  Please try again entering it lower case and check the '@' and '.' characters.");
		          document.contact_us.conmail.focus();
		          return false;}
			     } 
				 if(document.contact_us.concomment.value <= 0)	{
		          alert("Please enter your comment");
				  document.contact_us.concomment.focus();
		          return false;
			      }
				 return true;
	           }