/*--------------------------------------------------------------------------*
 *  
 *  heightline javascript library beta4
 *  
 *  mit-style license. 
 *  
 *  2007 kazuma nishihata 
 *  http://www.webcreativepark.net
 *  
 *--------------------------------------------------------------------------*/
new function(){
	
	function heightline(){
	
		this.classname="heightline";
		this.parentclassname="heightlineparent"
		reg = new regexp(this.classname+"-([a-za-z0-9-_]+)", "i");
		objcn =new array();
		var objall = document.getelementsbytagname ? document.getelementsbytagname("*") : document.all;
		for(var i = 0; i < objall.length; i++) {
			var eltclass = objall[i].classname.split(/\s+/);
			for(var j = 0; j < eltclass.length; j++) {
				if(eltclass[j] == this.classname) {
					if(!objcn["main cn"]) objcn["main cn"] = new array();
					objcn["main cn"].push(objall[i]);
					break;
				}else if(eltclass[j] == this.parentclassname){
					if(!objcn["parent cn"]) objcn["parent cn"] = new array();
					objcn["parent cn"].push(objall[i]);
					break;
				}else if(eltclass[j].match(reg)){
					var ocn = eltclass[j].match(reg)
					if(!objcn[ocn]) objcn[ocn]=new array();
					objcn[ocn].push(objall[i]);
					break;
				}
			}
		}
		
		//check font size
		var e = document.createelement("div");
		var s = document.createtextnode("s");
		e.appendchild(s);
		e.style.visibility="hidden"
		e.style.position="absolute"
		e.style.top="0"
		document.body.appendchild(e);
		var defheight = e.offsetheight;
		
		changeboxsize = function(){
			for(var key in objcn){
				if (objcn.hasownproperty(key)) {
					//parent type
					if(key == "parent cn"){
						for(var i=0 ; i<objcn[key].length ; i++){
							var max_height=0;
							var ccn = objcn[key][i].childnodes;
							for(var j=0 ; j<ccn.length ; j++){
								if(ccn[j] && ccn[j].nodetype == 1){
									ccn[j].style.height="auto";
									max_height = max_height>ccn[j].offsetheight?max_height:ccn[j].offsetheight;
								}
							}
							for(var j=0 ; j<ccn.length ; j++){
								if(ccn[j].style){
									var stylea = ccn[j].currentstyle || document.defaultview.getcomputedstyle(ccn[j], '');
									var newheight = max_height;
									if(stylea.paddingtop)newheight -= stylea.paddingtop.replace("px","");
									if(stylea.paddingbottom)newheight -= stylea.paddingbottom.replace("px","");
									if(stylea.bordertopwidth && stylea.bordertopwidth != "medium")newheight-= stylea.bordertopwidth.replace("px","");
									if(stylea.borderbottomwidth && stylea.borderbottomwidth != "medium")newheight-= stylea.borderbottomwidth.replace("px","");
									ccn[j].style.height =newheight+"px";
								}
							}
						}
					}else{
						var max_height=0;
						for(var i=0 ; i<objcn[key].length ; i++){
							objcn[key][i].style.height="auto";
							max_height = max_height>objcn[key][i].offsetheight?max_height:objcn[key][i].offsetheight;
						}
						for(var i=0 ; i<objcn[key].length ; i++){
							if(objcn[key][i].style){
								var stylea = objcn[key][i].currentstyle || document.defaultview.getcomputedstyle(objcn[key][i], '');
									var newheight = max_height;
									if(stylea.paddingtop)newheight-= stylea.paddingtop.replace("px","");
									if(stylea.paddingbottom)newheight-= stylea.paddingbottom.replace("px","");
									if(stylea.bordertopwidth && stylea.bordertopwidth != "medium")newheight-= stylea.bordertopwidth.replace("px","")
									if(stylea.borderbottomwidth && stylea.borderbottomwidth != "medium")newheight-= stylea.borderbottomwidth.replace("px","");
									objcn[key][i].style.height =newheight+"px";
							}
						}
					}
				}
			}
		}
		
		checkboxsize = function(){
			if(defheight != e.offsetheight){
				changeboxsize();
				defheight= e.offsetheight;
			}
		}
		changeboxsize();
		setinterval(checkboxsize,500)
		window.onresize=changeboxsize;
	}
	
	function addevent(elm,listener,fn){
		try{
			elm.addeventlistener(listener,fn,false);
		}catch(e){
			elm.attachevent("on"+listener,fn);
		}
	}
	addevent(window,"load",heightline);
}