/*globals bereiche, data*/


function set_visible(id){document.getElementById(id).style.visibility='visible';}
function set_hidden(id){document.getElementById(id).style.visibility='hidden';}
function get_width(id){return(document.getElementById(id).offsetWidth);}
function get_height(id){return(document.getElementById(id).offsetHeight);}
function set_width(id,x){document.getElementById(id).style.width=x+"px";}
function set_height(id,y){document.getElementById(id).style.height=y+"px";}
function get_display_block(id){if(document.getElementById(id).style.display=='block'){ return 1;} else {return 0;}}
function set_display_block(id){document.getElementById(id).style.display='block';}
function set_display_none(id){document.getElementById(id).style.display='none';}
function set_image_src(id,source){document.getElementById(id).src=source;}
function fensterbreite(){if(window.innerWidth){return window.innerWidth;}else if(document.body.offsetWidth){return document.body.offsetWidth;}else{return 0;}}
function fensterhoehe(){if(window.innerHeight){return window.innerHeight;}else if(document.body.offsetHeight){return document.body.offsetHeight;}else{return 0;}}
function set_opacity(id,opacity){document.getElementById(id).style.filter="progid:DXImageTransform.Microsoft.Alpha(opacity="+opacity+")";document.getElementById(id).style.MozOpacity=opacity/100;document.getElementById(id).style.opacity=opacity/100;}



function anzeigen(a)
{
	if(a===0)
	{
		if(get_display_block("bereiche"))
		{
			document.getElementById("anzeige_aus").src="http://www.ifw-hamburg.de/design/images/click_aus.gif";
			set_display_none("bereiche");
		}
		else
		{
			document.getElementById("anzeige_aus").src="http://www.ifw-hamburg.de/design/images/click_an.gif";
			set_display_block("bereiche");
		}
	}
	else
	{
		document.getElementById("anzeige_aus").src="http://www.ifw-hamburg.de/design/images/click_an.gif";
		set_display_block("bereiche");
	}

}

function content_switch(a)
{
	anzeigen(1);

	if(document.getElementById("s_"+a).src==="http://www.ifw-hamburg.de/design/images/click_aus.gif")
	{
		document.getElementById("s_"+a).src="http://www.ifw-hamburg.de/design/images/click_an.gif";
	}
	else
	{
		document.getElementById("s_"+a).src="http://www.ifw-hamburg.de/design/images/click_aus.gif";
	}
	var l=data.length;
	var m=bereiche.length;
	var such;
	for(a=0;a<l;++a)
	{
		var ok=0;
		for(var b=0;b<m;++b)
		{
			if(document.getElementById("s_"+b).src==="http://www.ifw-hamburg.de/design/images/click_an.gif")
			{
				such=bereiche[b];
				if(data[a][1].search(such)>-1)
				{
					ok=1;
				}
			}
		}
		if(ok)
		{
			set_display_block("s"+a);
		}
		else
		{
			set_display_none("s"+a);
		}
	}
}

function setup()
{
	set_display_block("header");
}


window.onload=setup;