function winope(nom,wide,high) { 
   var bigger = nom + ".html";
   newWin = window.open(bigger, 'newWin', 'width='+wide+',height='+high+',resizable')
        }


function rollout(imgDocID) {
          var rollimg = "images/"+imgDocID+"-off.gif"     
	document.images[imgDocID].src =rollimg;
    
	      }
function rollover(imgDocID) {
          var rollimg = "images/"+imgDocID+".gif"     
	document.images[imgDocID].src =rollimg;
    
	      }
		  
var iPath = 'images/';
var iExt = 'gif';
var suffix = new Array('big');

function preLoad()
{
  if(document.images)
  {
    var argLen = arguments.length;
    for(var i = 0; i < argLen; i++)
    {
      var arg = arguments[i];
      var sufLen = suffix.length;
      for(j = 0; j < sufLen; j++)
      {
        var suf = suffix[j]
        self[arg + '_' + suf] = new Image();
		self[arg + '_' + suf].src = iPath + arg + '-' + suf + '.' + iExt;
      }
    }
  }
}

function swapper(idName,putIn){
swapImage = new Image;
	swapImage.src = "images/"+idName+"-big.gif";
	document.getElementById(putIn).src  = swapImage.src;
	}
	
function validateReg(){
    var result=true;
    if(document.registerForm.firstname.value=="")
    {
       alert("Please enter your First Name")
	   document.registerForm.firstname.focus();
       result = false;
    }
    else if(document.registerForm.lastname.value=="")
    {
       alert("Please enter your Last Name")
	   document.registerForm.lastname.focus();
       result = false;
    }
	
    else if(document.registerForm.email.value=="")
    {
       alert("Please enter an email address")
	   document.registerForm.email.focus();
       result = false;
    }
    else if((document.registerForm.email.value.indexOf('@')<=0 || document.registerForm.email.value.indexOf('.')<=0)){
	  	       alert("Please type in a valid email address")	
	   document.registerForm.email.focus();
	       result = false;
	}
    return result;
	
}