
<!--  

function validate(form) {
   var EmailOk  = true;
   var xx = document.presenter;
   var msg; 
 
 /* VALIDATE THE Name PERSON INFO */  
   if (xx.realname.value.length == 0) { 
	    alert("Please enter your full name.") ;
	    xx.realname.focus() ;
   		return false ; 
		}						
   if (xx.phone.value.length == 0) {
   		validatePrompt(xx.phone, "Please enter your Phone Number.") ;
   		return false ; 
		}
   if (xx.email.value.length == 0) {
   		validatePrompt(xx.email, "Please enter your Email address.") ;
   		return false ; 
		}
   else 
   		{
	   	 EmailOK = checkEmail(xx.email);  
		 if (EmailOK == false) 
		 	return false;  	
   		}

   if (xx.business_name.value.length == 0) {
   		validatePrompt(xx.business_name, "Please enter the name of your company.") ;
   		return false ; 
		}							 
   if (xx.bus_prod_svc.value.length == 0) {
   		validatePrompt(xx.bus_prod_svc, "Please enter your company product or service.") ;
   		return false ; 
		}							 
			
   if (xx.your_title.value.length == 0) {
   		validatePrompt(xx.your_title, "Please enter your title.") ;
   		return false ; 
		}							 

   if (xx.presentation_title.value.length == 0) {
   		validatePrompt(xx.presentation_title, "Please enter the name of your presentation.") ;
   		return false ; 
		}							 

   if (xx.presentation_summary.value.length == 0) {
   		validatePrompt(xx.presentation_summary, "Please enter a brief summary of your presentation.") ;
   		return false ; 
		}							 
																
	return true;
   
}  		// end function

function isEmpty(inputStr) {
	if (inputStr == null || inputStr == "") {
		return true;
	}
	return false;
}

function validatePrompt(Ctrl, PromptStr) {
   alert(PromptStr) ;
   Ctrl.focus() ;
   return ;
}

function checkEmail(emailStr) {
   var Temp     = emailStr
   var AtSym    = Temp.value.indexOf('@')
   var Period   = Temp.value.lastIndexOf('.')
   var Space    = Temp.value.indexOf(' ')
   var Length   = Temp.value.length - 1   // Array is from 0 to length-1
   
   if ((AtSym < 1) ||                     // '@' cannot be in first position
    (Period <= AtSym+1) ||             // Must be atleast one valid char btwn '@' and '.'
    (Period == Length ) ||             // Must be atleast one valid char after '.'
    (Space  != -1))                    // No empty spaces permitted
   {  
      alert('Please enter a valid e-mail address!')
      Temp.focus()
      return false;
   }
}

//-->