/**
 * Javascript common functions.
 */

// Retrieve a named element from the document

function getElement(name) {
	var obj = null
	
	if (document.getElementById) {
		obj = document.getElementById(name)
	}
	if (document.all && obj == null) {
		obj = document.all[name]
	}
	if (document.layers && obj == null) {
		obj = document.layers[name]
	}
	
	// Could be an element on a form
	
	if (obj == null) {
		for (frmIdx=0; frmIdx < document.forms.length; frmIdx++) {
			form = document.forms[frmIdx]
			for (elIdx = 0; elIdx < form.elements.length; elIdx++) {
				el = form.elements[elIdx]
				if (el.id == name || el.name == name) {
					return el
				}
			}
		}
	}
	
	return obj
}
// Open a new window

function fcWindowOpen(url, name, options) {
	// Preappend the context if the url is an absolute URL on this server
	if (url.indexOf('/') == 0) {
		window.open('/financity' + url, name, options)
	}
	else {
		window.open(url, name, options)
	}
}

// Change location of current document (e.g. go to new page)

function fcLocationChange(url) {
	// Preappend the context if the url is an absolute URL on this server
	if (url.indexOf('/') == 0) {
		window.location = '/financity' + url
	}
	else {
		window.location = url
	}
}

function fcHelpWin(url) {
    fcWindowOpen(url, 'help', 'width=600,height=600, scrollbars=yes');
}

// A class encapsulating the functionality of date editing for flexible dates

function FlexibleDate() {
	// Methods
	this.showDate = showDate
	this.dateFocus = dateFocus
}

function FlexibleDate(type, lifeDate, absoluteDate) {
	this.type = getElement(type)
	this.lifeDate = getElement(lifeDate)
	this.absoluteDate = getElement(absoluteDate)
	
	// Methods
	this.showDate = showDate
	this.showDate()
}

function showDate() {
	if (this.type.value == "ABSOLUTE_DATE") {
    	this.absoluteDate.style.visibility="visible"
    	this.lifeDate.style.visibility="hidden"
	}
	else if (this.type.value == "LIFE_DATE") {
    	this.absoluteDate.style.visibility="hidden"
    	this.lifeDate.style.visibility="visible"
	}
	else {
    	this.absoluteDate.style.visibility="hidden"
		this.lifeDate.style.visibility="hidden"
	}

}

function deleteConfirmation() {
    return confirm("Do you really want to delete this entry?")
}

// Double click disable functions

function submitThenLink(link, formName) {
	document.body.style.cursor = "wait"
    link.onclick = "return true"
    var form = document.forms[formName]
    form.submit()
}

function submitOnce(button) {
	document.body.style.cursor = "wait"
	button.onclick = "return false"
	return true
}

function linkOnce(link) {
	document.body.style.cursor = "wait"
	link.onclick = "return false";
	return true;
}