window.onload = function(){
	setTargetBlank();
	init_expand();
}

//--------------------------------------------------------------------------------------------------

//Browser Detection/Redirection
detect();
function detect(){
	var userAgent = navigator.userAgent;
	//KEEP OUT: IE 5.0, IE 5.5, NN 7.x
	if(userAgent.indexOf("MSIE 5.0") != -1 || userAgent.indexOf("MSIE 5.5") != -1 || userAgent.indexOf("Netscape/7") != -1 ){
		//alert("Unsupported Browser: \n" + userAgent);
		location.href = "upgrade";
	}
}

//--------------------------------------------------------------------------------------------------

//standards-compliant target="_blank" functionality
function setTargetBlank() {
	if (document.getElementsByTagName){
		var arrAnchors = document.getElementsByTagName("a");
		for (var i=0; i<arrAnchors.length; i++) {
			var anchor = arrAnchors[i];
			if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "blank"){
				anchor.target = "_blank";
			}
		}
	}
} 

//--------------------------------------------------------------------------------------------------

//check expand
function init_expand(){
	var blocks = document.getElementById("main").getElementsByTagName("div");
	var block_split;
	var id;
	for(i=0;i<blocks.length;i++){
		if((blocks[i].id).indexOf("block-") != -1){
			block_split = (blocks[i].id).split("-");
			id = block_split[1];
			expand(id);
		}
	}
}

//expand/collapse
function expand(id){
	var block = document.getElementById("block-" + id);
	var heading = document.getElementById("heading-" + id);
	
	//expand block
	if(block.className == "block-closed"){
		block.className = "block-open";
		heading.className = "heading-open";
	}else if(block.className == "block-open" || block.className == ""){
		block.className = "block-closed";
		heading.className = "heading-closed";
	}
	
	heading.blur();
	
}



//--------------------------------------------------------------------------------------------------

function check_signup_form(){
	
	var the_form = document.forms["sign-up-form"];	
	var validated = true;
	var sErrors = "";
	
	if((the_form.elements["MERGE1"].value).length == 0) {
		validated = false;
		sErrors += "- Please enter your First Name.\n";
	}
	
	if((the_form.elements["MERGE2"].value).length == 0) {
		validated = false;
		sErrors += "- Please enter your Last Name.\n";
	}
	
	if((the_form.elements["MERGE0"].value).length == 0) {
		validated = false;
		sErrors += "- Please enter your Email address.\n";
	}
	
	if((the_form.elements["MERGE0"].value).length > 0 && ((the_form.elements["MERGE0"].value).indexOf("@") == -1 || (the_form.elements["MERGE0"].value).indexOf(".") == -1)) {
		validated = false;
		sErrors += "- Your email address must be in the format name@domain.com.\n";
	}
	
	if(validated) {
		the_form.submit();
	}else{
		alert(sErrors);
	}
	
}