var returnValue = true;
var img_idx = 0;
var img123 = new Array(4);
var bimg123 = new Array(4);

function isValidEmail(str) {
   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
 
}



function set_123()
{
	
	b = setInterval(play_123,2000);
}



function play_123()
{

	img_idx++;
	
	if (img_idx>3)
		img_idx = 1;
		
	for(i=1;i<=3;i++)
	{
		if (bimg123[i] == null) {
			bimg123[i] = new Image();
			bimg123[i].src = "images/buttons/"+i+"b.gif";
		}
		
		document.getElementById("p"+i).src = bimg123[i].src;
	}
	
	if (img123[img_idx] == null){
		img123[img_idx] = new Image();
		img123[img_idx].src = "images/buttons/"+img_idx+"r.gif"
		
		
	}
	
	document.getElementById("p"+img_idx).src = img123[img_idx].src; //"images/buttons/"+img_idx+"r.gif";
	
	
	

}


function check_email_form()
{
	var args = check_email_form.arguments;
	
	for(i=0; i< args.length; i+=4)
	{
		name = args[i];
		type = args[i+1];
		len  = args[i+2];
		warn = args[i+3];
		
		switch(type)
		{
			case 0:
				sValue = eval("document.forms[0]."+name+".value");
				if (sValue.length < len)				
				{
					alert(warn);
					eval("document.forms[0]."+name+".focus()");
					return false;					
				}
			break;
			
			case 1:
				sValue = eval("document.forms[0]."+name+".value");
				if (!isValidEmail(sValue))				
				{
					alert(warn);
					eval("document.forms[0]."+name+".focus()");
					return false;
				}
			break;
			
			// UNFINISHED!
			case 2:
				sValue = eval("document.forms[0]."+name+".value");
				if (sValue.length < len)				
				{
					alert(warn);
					eval("document.forms[0]."+name+".focus()");
					return false;
				}
			break;
		}
		
		//alert(name+"/" + type + "/" + len);
	
	}
	return true;
	
	
}


function dispatch_form()
{
	
 	var frm = document.forms[0].empapp_coursetaught;
	//document.location.href= frm.options[frm.selectedIndex].value;
	//mafenetre = window.open(frm.options[frm.selectedIndex].value, "secondefenetre", "width=950,height=600,scrollbars");
	//mafenetre.focus();
	open_win(frm.options[frm.selectedIndex].value);
}









function open_win(link){
	mafenetre = window.open(link, "secondefenetre", "width=950,height=600,scrollbars");
	mafenetre.focus();
}