function swap_div(div1, div2)
{
	
	div1_class = gebi(div1).className;
	div2_class = gebi(div2).className;
	
	div1_link_class = gebi(div1+'_link').className;
	div2_link_class = gebi(div2+'_link').className;
		
	if(div1_link_class!="selected")
	{
	
		gebi(div1).className = div2_class;
		gebi(div2).className = div1_class;
		gebi(div1 +'_link').className = div2_link_class;
		gebi(div2 +'_link').className = div1_link_class;
	}
	
	return false;
}

var input_div="";
var origional_span="";
var origional_height ="";
function sub_nav(div, state)
{
	if(div=="")
	{	
		div = this.input_div;
	}
	
	this.input_div = div;

	
	if(div !=null && div!="")
	{
		var sub_nav = gebi("sub_nav");
		var spans = sub_nav.getElementsByTagName("span");
		
		if(state =="on")
		{		
			for (var i = 0; i < spans.length; i++)
			{	
				if(spans[i].getAttribute("class")=="")
				{
					this.origional_span = spans[i].getAttribute("id");
					spans[i].attributes['class'].value = "hide";
				}
			}
			
			/*Extend it so that the links show regardlesss*/
			this.origional_height = gebi('sub_nav').style.height;
			gebi("sub_nav").style.height = "26px";
			gebi("sub_nav_left").style.height = "26px";
			gebi("sub_nav_right").style.height = "26px";
			
			gebi(div).className ="";
		}else{
			for (var i = 0; i < spans.length; i++)
			{	
				if(spans[i].getAttribute("id")!=this.origional_span)
				{
					spans[i].attributes['class'].value = "hide";
				}else{
					spans[i].attributes['class'].value = "";
				}
				
			}
			gebi('sub_nav').style.height = this.origional_height;
			gebi('sub_nav_left').style.height = this.origional_height;
			gebi('sub_nav_right').style.height = this.origional_height;
		}
	}
}

function shift_background(div, state, div_nav, shiftamnt)
{
	if(state=="on")
	{
		gebi(div).style.backgroundPosition="0 -"+shiftamnt+"px";
	}else{
		gebi(div).style.backgroundPosition="0 0px";
	}
	
	//sub_nav(div_nav, state);	
}

function  validate_email_friend()
{
	if(document.email_friend.name.value!="")
	{
		var email_reg=/^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
		if(email_reg.test(document.email_friend.email.value))
		{
			if(document.email_friend.body_txt.value!="")
			{					
				return true;
			}else{
				alert("Please enter content");
				return false;
			}
		}else{
			alert("Please enter a real email");
			return false;
		}
	}else{
		alert("Please enter your name");
		return false;
	}			
}