function istock_Photo() {
window.open( "http://www.istockphoto.com/", "myWindow", "status = 1,  height = 600, width = 600")
}

function specification() {
	window.open( "http://www.servethailand.com/postcard/specifications.html", "myWindow", "status = 1, scrollbars, height = 450, width = 450")
}

function check_length(mailer) {
var maxlen = 900

if(mailer.bodyContent1.value.length + mailer.bodyContent2.value.length + mailer.bodyContent3.value.length + mailer.bodyContent4.value.length >= maxlen) {
var msg = mailer.bodyContent_counter.value
alert("You cannot have more then 900 characters total");
}
else{mailer.bodyContent_counter.value = maxlen - mailer.bodyContent1.value.length - mailer.bodyContent2.value.length - mailer.bodyContent3.value.length - mailer.bodyContent4.value.length}
}

//here you place the ids of every element you want.
var ids=new Array('study','sermon', 'tools');

function switchid(id){	
	hideallids();
	showdiv(id);
}

function hideallids(){
	//loop through the array and hide each element by id
	for (var i=0;i<ids.length;i++){
		hidediv(ids[i]);
	}		  
}

function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}