// JavaScript Document

var currentSection = 1;

//TODO: Fade in, slide in display ???

var bgdisp = true;

function startupFleet() {
	if (pararr["section"]) {
		var parnum = pararr["section"];				
		parnum = pararr["section"];
		//tech_1_section_1_link		
		if (parnum > 0) {
			changeRigFleetSection(ged("rigfleet_section_" + parnum + "_link"));
		}
	}	
}


function openRigSummary(rigName) {	
	//show text relating to rig and allow download
	//var disp = document.getElementById("tech_" + rigName);
	var disp = ged("rigsummary_file");
	if (disp && bgdisp) {
		//grey out the background	
		var greyout = 0.5;
		var greyel = ged("subpage_section");
		if (greyel.style.opacity) {
			greyel.style.opacity = greyout;
		}		
		greyel.style.MozOpacity = greyout;
		greyel.style.KhtmlOpacity = greyout;		
		greyel.style.filter = "alpha(opacity=" + (greyout * 100) + ")";			
				
		disp.style.display = "";
		
		ged("rigsum_title").innerHTML = " " + rigName;
		
		var img = ged("rigsum_imgfile");
		img.src = "img/" + rigName + "_rigprof.jpg";
		
		
		
		//disp.style.width = "602px";		
		//var pagewidth = document.body.clientWidth;				
		//disp.style.left = ((pagewidth / 2) - (disp.style.width.replace(/px/g, "")/2)) + "px";
				
		bgdisp = false;
	}	
}

function closeRigSummary() {	
	//var el = document.getElementById(elDisp);
	var el = ged("rigsummary_file");	
	
	var greyout = 1;
	var greyel = ged("subpage_section");
	if (greyel.style.opacity) {
		greyel.style.opacity = greyout;
	}
	greyel.style.MozOpacity = greyout;
	greyel.style.KhtmlOpacity = greyout;		
	greyel.style.filter = "alpha(opacity=" + (greyout * 100) + ")";			
			
	el.style.display = "none";
	
	bgdisp = true;
}



function resetRigFleet() {
	
	var oldel = ged("rigfleet_section_" + currentSection + "_link");
	if (oldel) {
		oldel.className = "subpage_menu_title";
	}	
	var sect = ged("rigfleet_section_" + currentSection);
	if (sect) {
		sect.style.display = "none";
	}
	
	if (ged("subpage_text_1")) {
		ged("subpage_text_1").style.display = "";
		ged("main_image_div_1").style.display = "";
	}		
}


function changeRigFleetSection(el) {
	//		  	0		1      2   3 
	//el has siteinv1_section_1_link
	//find siteinv1_section_1
	
	closeRigSummary();
	
	if (ged("subpage_text_1")) {
		ged("subpage_text_1").style.display = "none";
		ged("main_image_div_1").style.display = "none";
	}	
		
		
	var oldel = ged("rigfleet_section_" + currentSection + "_link");
	if (oldel) {
		oldel.className = "subpage_menu_title";
	}
	
	var sect = ged("rigfleet_section_" + currentSection);
	if (sect) {
		sect.style.display = "none";
	}
		
	var id = el.id;

	var tmparr = id.split("_");
	currentSection = tmparr[2];	
		
	var sect = ged("rigfleet_section_" + currentSection);	
	sect.style.display = "";
	
	el.className = "subpage_menu_title_sel";
}

function unHighlightSection(el) {
	el.style.textDecoration = "";		
}

function highlightSection(el) {
	el.onmouseout = function(){unHighlightSection(el)};		
	el.style.textDecoration = "underline";	
}