function onLoad(){
		if (!document.getElementById("content") 
			|| !document.getElementById("bottom_menu")
			|| !document.getElementById("logo")
			|| !document.getElementById("menu")
			|| !document.getElementById("left_content"))
				return;
		
			if(document.getElementById("content").offsetHeight < (getBodyHeight() - 
			document.getElementById("bottom_menu").offsetHeight - document.getElementById("logo").offsetHeight - 
			document.getElementById("menu").offsetHeight - 6)) 
					document.getElementById("content").style.height = (getBodyHeight() - document.getElementById("bottom_menu").offsetHeight - 
					document.getElementById("logo").offsetHeight - document.getElementById("menu").offsetHeight 
					- 6) + 'px';
					
			document.getElementById("left_content").style.height = document.getElementById("content").offsetHeight + 'px'; 
	}
	function getBodyHeight() {
		if(window.innerHeight != null)
			return window.innerHeight;
		else
			return document.body.offsetHeight;
	}
	function onHomeLoad(){
	if(document.getElementById("content").offsetHeight < getBodyHeight() - 
			document.getElementById("bottom_menu").offsetHeight - document.getElementById("logo").offsetHeight - 
			document.getElementById("menu").offsetHeight - document.getElementById("main_pic").offsetHeight - 6)
					document.getElementById("content").style.height = (getBodyHeight() - document.getElementById("bottom_menu").offsetHeight - 
					document.getElementById("logo").offsetHeight - document.getElementById("menu").offsetHeight 
					- document.getElementById("main_pic").offsetHeight - 6) + 'px';
	document.getElementById("right_content").style.height = document.getElementById("content").offsetHeight + 'px'; 
	}
	
	function onLoginFailedLoad(){
	document.getElementById("content").style.height = getBodyHeight() - document.getElementById("bottom_menu").offsetHeight - 
	document.getElementById("logo").offsetHeight - document.getElementById("menu").offsetHeight;
	}
	
	function clearAll(){
	document.getElementById("txtName").value="";
	document.getElementById("txtTitle").value="";
	document.getElementById("txtCompany").value="";
	document.getElementById("txtPhone").value="";
	document.getElementById("txtEmail").value="";
	document.getElementById("txtmessage").value="";
	} 
	
	function login_button(){
	if (document.getElementById("login_field").value == "" && document.getElementById("password_field").value == ""){
		alert("Please, enter login and password");
		return;
		}
		
	if (document.getElementById("password_field").value == ""){
		alert("Please, enter password")
		return;
		}
		
	if (document.getElementById("login_field").value == ""){
		alert("Please, enter login")
		return;
		}
	
	document.location.href='failed_login.html';
	}