/* Login popup box */
function toggle_display(id){
	var el = document.getElementById(id);
	if(el.style.display == 'none'){
		el.style.display = 'block';
	}else{
		el.style.display = 'none';
	}
}
function display_login_box(){
	toggle_display('loginForm');
	
}
// Begin randomizer to call random #
rnd.today=new Date();
rnd.seed=rnd.today.getTime();
function rnd() {
        rnd.seed = (rnd.seed*9301+49297) % 233280;
        return rnd.seed/(233280.0);
};
function rand(number) {
        return Math.ceil(rnd()*number);
};
//end randomizer code

function viewImage( id, imageWidth, imageHeight, imageName ){
	
	var hugger = "hug image";
	var bgcolor = "";
	var hugMargin = "";
	var alt = "Click to close";

	if (bgcolor=="") {
		bgcolor="#FFFFFF";
	}
	var adj=10
	var w = screen.width;
	var h = screen.height;
	var byFactor=1;

	if(w<740){
	  var lift=0.90;
	}
	if(w>=740 & w<835){
	  var lift=0.91;
	}
	if(w>=835){
	  var lift=0.93;
	}
	if (imageWidth>w){	
	  byFactor = w / imageWidth;			
	  imageWidth = w;
	  imageHeight = imageHeight * byFactor;
	}
	if (imageHeight>h-adj){
	  byFactor = h / imageHeight;
	  imageWidth = (imageWidth * byFactor);
	  imageHeight = h; 
	}
	   
	var scrWidth = w-adj;
	var scrHeight = (h*lift)-adj;

	if (imageHeight>scrHeight){
  	  imageHeight=imageHeight*lift;
	  imageWidth=imageWidth*lift;
	}

	var posLeft=0;
	var posTop=0;

	if (hugger == "hug image"){
	  if (hugMargin == ""){
	    hugMargin = 0;
	  }
	  var scrHeightTemp = imageHeight - 0 + 2*hugMargin;
	  if (scrHeightTemp < scrHeight) {
		scrHeight = scrHeightTemp;
	  } 
	  var scrWidthTemp = imageWidth - 0 + 2*hugMargin;
	  if (scrWidthTemp < scrWidth) {
		scrWidth = scrWidthTemp;
	  }
	  
	  if (scrHeight<100){scrHeight=100;}
	  if (scrWidth<100){scrWidth=100;}

	  posTop =  ((h-(scrHeight/lift)-adj)/2);
	  posLeft = ((w-(scrWidth)-adj)/2);
 	}

	if (imageHeight > (h*lift)-adj || imageWidth > w-adj){
		imageHeight=imageHeight-adj;
		imageWidth=imageWidth-adj;
	}
	posTop = parseInt(posTop);
	posLeft = parseInt(posLeft);		
	scrWidth = parseInt(scrWidth); 
	scrHeight = parseInt(scrHeight);
	
	var agt=navigator.userAgent.toLowerCase();
	if (agt.indexOf("opera") != -1){
	  var args= new Array();
	  args[0]='parent';
	  args[1]=imageName;
	  var i ; document.MM_returnValue = false;
	  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
	} else {

	newWindow = window.open("?act=view_image&zoom=1&id=" + id,"newWindow","width="+scrWidth+",height="+scrHeight+",left="+posLeft+",top="+posTop);
	
	newWindow.focus();
	
	}
}