function display(){
	var x=arguments[0];
	var obj=arguments[1];
	var objX=document.getElementById(obj);
	objX.style.display = x;

}

function storeCaret(textEl) {
	if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();
}

function insert(text) {
	//text = ' ' + text + ' ';
	if (document.form.roomEmailBody.createTextRange && document.form.roomEmailBody.caretPos) {
		var caretPos = document.form.roomEmailBody.caretPos;
		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text + ' ' : text;
		document.form.roomEmailBody.focus();
	} else if (document.form.roomEmailBody.selectionStart != undefined) {
		document.form.roomEmailBody.value = document.form.roomEmailBody.value.substring(0, document.form.roomEmailBody.selectionStart) + text + document.form.roomEmailBody.value.substring(document.form.roomEmailBody.selectionStart);
		document.form.roomEmailBody.focus();
	} else {
		document.form.roomEmailBody.value += text;
		document.form.roomEmailBody.focus();
	}
	
	display('none','pers_f');
}

function castomUsers() {
	
	var sel=document.getElementById('selectUsers');
         var v=sel.options[sel.selectedIndex].value;
         if (v == 0) {
         	document.getElementById('castom_U').style.display = 'block';
         	
         }
         else document.getElementById('castom_U').style.display = 'none';
}