/*
 * Utility functions for all projects
 */
function makePassword() {
	$("#passwdtxt").hide().val('');
	$("#password").show().focus();
}

function createCookie(name,value,days) {
	var expires = "";
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		expires = "; expires="+date.toGMTString();
	}	
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function isInt(x) {
   var y=parseInt(x);
   if (isNaN(y)) return false;
   return x==y && x.toString()==y.toString();
} 

function clearContent(obj) {
	while(obj.firstChild) obj.removeChild(obj.firstChild);
}

function addOption(select,element) {
	var option = document.createElement('option');
	option.setAttribute('value',element.firstChild.firstChild.nodeValue);
	if(element.firstChild.nextSibling.firstChild.nodeValue=="selected")	{
		option.setAttribute('selected',"selected");
	}
	option.appendChild(document.createTextNode(element.lastChild.firstChild.nodeValue));
	if(element.firstChild.firstChild.nodeValue && element.lastChild.firstChild.nodeValue) {
		select.appendChild(option);		
	}
}