function exists(userEntry) {

  var aCharExists = 0;
  var entry=userEntry;

  if(entry) {
     for (var i=0; i<entry.length; i++) {
       if (entry.charAt(i) !="") {
         aCharExists=1;
       }
     }
  }

  if(!aCharExists) {
  return 0;
  }

  return 1;
}

  function validateAppForm1() {
    
    	var fixThis = "";
    
    	if(!(exists(document.frmApp1.advertiser_name.value))) {
    
    	  	fixThis += "Please enter your name.\n";
    	}
    	
    	if(!(exists(document.frmApp1.advertiser_interest.value))) {
	    
	    	fixThis += "Please enter your area of interest.\n";
    	}
    	
    	if(!(exists(document.frmApp1.advertiser_email.value))) {
	    
	    	fixThis += "Please enter your email.\n";
    	}
    	
    	if(!(exists(document.frmApp1.advertiser_telephone.value))) {
	    
	    	fixThis += "Please enter your telephone number.\n";
    	}
    	
    	if (fixThis !="") {
    	  alert(fixThis);
    	  
    	} else {
    	   
    	   document.frmApp1.submit();
    	}
  }