function set_size() {
	if (document.getElementById('png').style.display=='block')
	{
		document.getElementById('png').style.height=document.getElementById('container').offsetHeight + 'px';
		document.getElementById('png').style.width=document.getElementById('container').offsetWidth + 'px';
	}
}

function show(i) {
	document.getElementById(i).style.display='block';
}

function hide(i) {
	document.getElementById(i).style.display='none';
}


function getDocumentHeight()
{
    return (document.body.scrollHeight > document.body.offsetHeight)?document.body.scrollHeight:document.body.offsetHeight;


}

function getDocumentWidth()
{
    return (document.body.scrollWidth > document.body.offsetWidth)?document.body.scrollWidth:document.body.offsetWidth;
}

function _openimgproduct(image, wImg, alt)
{
   w=getDocumentWidth();
   h=getDocumentHeight();

   document.getElementById('png').style.height=document.getElementById('container').offsetHeight + 'px';
   document.getElementById('png').style.width=document.getElementById('container').offsetWidth + 'px';
   show('png');
   object="<img src=\"/img/mid_"+image+"\" border=0>";
if(alt!='')object+="<br><b>"+alt+"</b><br><br>";
   document.getElementById("block_img").innerHTML=object;
if(wImg!='0'){document.getElementById("popup").style.width=parseInt(wImg)+20+'px';}

   show('popup');

}
var zap_btm_foot="";
var submenupos="";
function _bgimage(type, zet)
 {

   if(type!='mainpage')
    {   document.getElementById("backmain").style.display='block';
        document.getElementById("backmain").src="/images/bg_"+type+".jpg";
    	document.getElementById("logohref").innerHTML="<a href=\"javascript:_bgimage('mainpage', 'line')\"><img src=\"images/logo2.png\" alt=\"Watermen\" /></a>";


    	if(zet=='ord'){
    		if(zap_btm_foot!=type){
    		   if(zap_btm_foot!=""){
    		   	document.getElementById(zap_btm_foot).style.display='none';
    		   	document.getElementById("menu_"+zap_btm_foot).className="nactive";
    		   	}
    		   document.getElementById("menu_"+type).className="active";
    		   document.getElementById(type).style.display='block';
               submenupos=type;
    		   zap_btm_foot=type;
    		}else{
    		if(document.getElementById(type).style.display=='block')
            	 {document.getElementById(type).style.display='none';document.getElementById("menu_"+type).className="nactive";zap_btm_foot="";submenupos="";}
    		else {document.getElementById(type).style.display='block';document.getElementById("menu_"+type).className="active";zap_btm_foot=type;submenupos=type;}
    		}
    		}else{
    		       if(zap_btm_foot!=type)if(zap_btm_foot!=""){
    	             document.getElementById(zap_btm_foot).style.display='none';
    	             document.getElementById("menu_"+zap_btm_foot).className="nactive";
    	           }
                   document.getElementById("menu_"+type).className="active";
                   zap_btm_foot=type;
    			}
    }else{
        //document.getElementById("backmain").innerHTML='';
        document.getElementById("menu_"+zap_btm_foot).className="nactive";
        document.getElementById("backmain").style.display='none';
    	document.getElementById("logohref").innerHTML="<img src=\"images/logo2.png\" alt=\"Watermen\" />";
    	if(zap_btm_foot!="")document.getElementById(zap_btm_foot).style.display='none';
    	zap_btm_foot="";submenupos="";
    }

 }

function _opensmenu(ord)
 {
 	var el=document.getElementById("subm"+ord);
 	if(el.style.display=='none'){el.style.display='block';
 	if(submenupos!='')document.getElementById(submenupos).style.display='none';
 	submenupos="subm"+ord;

 	}
 	else {el.style.display='none';submenupos="";}
 }


function _scrollinst()
 {
 	   //if(navigator.appName=="Microsoft Internet Explorer"){document.body.style.overflow='hidden';}
 }
function _install()
 {
   document.body.onclick=closeSubmenu;
   _scrollinst();
   submenupos="heating";
   zap_btm_foot="heating";
 }

function closeSubmenu(evt)
 {
   evt = (evt) ? evt : ((window.event) ? event: null);
   if(evt){
   	var elem = (evt.target) ? evt.target: ((evt.srcElement) ? evt.srcElement: null);
   	if(elem){
        if(submenupos!=''){
        	if((elem.id=='')||(elem.id=='backmain')){
        		document.getElementById(submenupos).style.display='none';
        		if(zap_btm_foot!=""){document.getElementById("menu_"+zap_btm_foot).className="";}
        		submenupos='';
        		}

        	}

   		}
   }
 }