//***********************************************	
//***************** FUNCTIONS *******************
//***********************************************

	

// show more
function showMore(sCmd, sRN){
	document.frmMain.cmd.value = sCmd;
	document.frmMain.sreefnum.value = sRN;
	document.frmMain.submit();
	showLayer("loadLayer");
}

// show reef
function showReef(s){
	document.frmMain.cmd.value = "ZOOMREEF";
	document.frmMain.reef.value = s;
	document.frmMain.submit();
	showLayer("loadLayer");	
}

// show site
function showSite(s){
	document.frmMain.cmd.value = "ZOOMSITE";
	document.frmMain.site.value = s;
	document.frmMain.submit();
	showLayer("loadLayer");	
}

// show search layer
function showSearchLayer(sLayer) {
    	hideSearchLayer();
	clipLayer(sLayer, 0,0, 300, 1000);
	showLayer(sLayer);
	document.frmMain.searchtool.value = sLayer;
}

// hide search layer
function hideSearchLayer() {
	sLayer = document.frmMain.searchtool.value;
	if(sLayer != ""){
		hideLayer(sLayer);
	}
	document.frmMain.searchtool.value = "";
}

// min search layer
function minSearchLayer() {
	sLayer = document.frmMain.searchtool.value;
	clipLayer(sLayer, 0,0, 300, 21);
}

// max search layer
function maxSearchLayer() {
	sLayer = document.frmMain.searchtool.value;
	clipLayer(sLayer, 0,0, 300, 1000);
}

 // set map size
function setMapSize(s){
	document.frmMain.cmd.value = "REFRESH";
	document.frmMain.msize.value = s;
	document.frmMain.submit();
	showLayer("loadLayer");
}  


//*************************************************************************************

// show help
function showHelp(){
	if (typeof helpWin == 'undefined'){
		helpWin = window.open("help.htm", "Help", "width=500,height=400,toolbar=0,menubar=0,scrollbars=1,resizable=1,left=340,top=0");
		helpWin.opener = self;
	} else {
		if (helpWin.closed){
			helpWin = window.open("help.htm", "Help", "width=500,height=400,toolbar=0,menubar=0,scrollbars=1,resizable=1,left=340,top=0");
			helpWin.opener = self;
		} else {			
			helpWin.focus();
		}
	}
}


// show home
function showHome(){
	window.location = "default.htm";
}

// show photo
function showPhoto(r, idir, c){
	theURL = "getphotos.asp?reef="+r+"&imgdir="+idir+"&cur="+c;
	photoWin = window.open(theURL, "Photo", "width=650,height=400,toolbar=0,menubar=0,scrollbars=1,resizable=1,left=20,top=0");
}