var limit = 500;

 function check() {
	var theForm = document.getElementById('f');
	if(theForm){
		if(document.getElementById('f').comment.value.length > limit) {
			alert('Too much data!');
			document.getElementById('f').comment.focus();
			return false;
		} else {
			return true;
		}
	}
	var theForm2 = document.getElementById('blogF');
	if(theForm2){
		if(document.getElementById('blogF').comment.value.length > limit) {
			alert('Too much data!');
			document.getElementById('blogF').comment.focus();
			return false;
		} else {
			return true;
		}
	}
 }

function writeImgTag(code) {
	var theForm = document.getElementById('f');
	if(theForm){
		var obj = document.getElementById('f').comment;
		var text = code;
		insertAtCaret(obj, text);
	}
	var theForm2 = document.getElementById('blogF');
	if(theForm2){
		var obj = document.getElementById('blogF').comment;
		var text = code;
		insertAtCaret(obj, text);
	}
}

 function update() {
	var theForm = document.getElementById('f');
	if(theForm){
		var old = document.getElementById('f').counter.value;
		document.getElementById('f').counter.value = document.getElementById('f').comment.value.length;
		if(document.getElementById('f').counter.value > limit && old <= limit) {
		alert('Too much data in the text box!');
			if(document.styleSheets) {
				document.getElementById('f').counter.style.fontWeight = 'bold';
				document.getElementById('f').counter.style.color = '#ff0000';
			}
		} else if(document.getElementById('f').counter.value <= limit && old > limit && document.styleSheets ) {
			document.getElementById('f').counter.style.fontWeight = 'normal';
			document.getElementById('f').counter.style.color = '#166F07';
		}
	}
	var theForm2 = document.getElementById('blogF');
	if(theForm2){
		var old = document.getElementById('blogF').counter.value;
		document.getElementById('blogF').counter.value = document.getElementById('blogF').comment.value.length;
		if(document.getElementById('blogF').counter.value > limit && old <= limit) {
		alert('Too much data in the text box!');
			if(document.styleSheets) {
				document.getElementById('blogF').counter.style.fontWeight = 'bold';
				document.getElementById('blogF').counter.style.color = '#ff0000';
			}
		} else if(document.getElementById('f').counter.value <= limit && old > limit && document.styleSheets ) {
			document.getElementById('blogF').counter.style.fontWeight = 'normal';
			document.getElementById('blogF').counter.style.color = '#166F07';
		}
	}
}