$("document").ready(function(){
	
	$("#rdd select").change(function(){
		
		var url=window.location.href;
		p=url.search(/\?/);
		
		if(p>-1)
			url=url.substring(0,p);
			
		url+="?";

		$("#rdd select").each(function(){			
			url+="&"+$(this).attr("name")+'='+$(this).attr("value");
			url+="&"+$(this).attr("name")+"_op=";
			
			if($(this).attr("value")=="")
				url+="0";
			else
				url+="1";
				
		});
		
		window.location.href=url+"#region";

	});
	
	function regionChange()
	{
		r=$("#rdd #region").attr("value");
		
		if(r!="")
		{
			d=$("#rdd #departement").attr("value");
			$("#rdd #departement").attr("value","");
			$("#rdd #departement option").css("display","none");
			$("#rdd #departement .r"+r).css("display","block");
			
			opt=$("#rdd #departement option[value="+d+"]");
			//alert(opt.css("display"));
			
			if(opt.css("display")=="block")
				opt.parent().attr("value",d);
		}		
	}
	
	//alert("ok");
	regionChange();
	
	$("#page-40 #middle select").change(function(){
		
		var url=window.location.href;
		//alert(url);
		p=url.search(/\?/);
		
		if(p>-1)
			url=url.substring(0,p);			
			
		url+="?";			

		url+="&"+$(this).attr("name")+'='+$(this).attr("value");
		url+="&"+$(this).attr("name")+"_op=";
		
		if($(this).attr("value")=="")
			url+="0";
		else
			url+="1";
			
		url_vars=getUrlVars();
		if(url_vars['discipline'])
			url+="&discipline="+url_vars['discipline']+"&discipline_op="+url_vars['discipline_op'];

		window.location.href=url+"#content";

	});
		
});	

function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}