// rozliseni browseru
// JavaScript Document
if (screen.width < 1280)  {
  document.write('<link rel="stylesheet" type="text/css" href="styly/main_low.css">');
}
if (screen.width >= 1280) {
  document.write('<link rel="stylesheet" type="text/css" href="styly/main.css">');
}

//zmena obrazku zelena lista
function changeIt(objName)
{
	//The image object accessed through its id we mentioned in the DIV block which is going to be visible currently
	var obj = document.getElementById(objName);
	
	//An array that hold the IDs of images that we mentioned in their DIV blocks
	var objId = new Array();
	
	//Storing the image IDs into the array starts here
	objId[0] = "image1";
	objId[1] = "image2";
	objId[2] = "image3";
	objId[3] = "image4";
	objId[4] = "image5";
	objId[5] = "image6";
	objId[6] = "image7";
	objId[7] = "image8";
	objId[8] = "image9";
	objId[9] = "image10";
	objId[10] = "image11";
	objId[11] = "image12";
	objId[12] = "image13";
	objId[13] = "image14";
	objId[14] = "image15";
	objId[15] = "image16";
	objId[16] = "image17";
	objId[17] = "image18";
	//Storing the image IDs into the array ends here
	
	//A counter variable going to use for iteration
	var i;
	
	//A variable that can hold all the other object references other than the object which is going to be visible
	var tempObj;
	
	//The following loop does the display of a single image based on its ID. The image whose ID we passed into this function will be the
	//only image that is displayed rest of the images will be hidden based on their IDs and that part has been handled by the else part
	//of the if statement within this loop.
	for(i=0;i<objId.length;i++)
	{
		if(objName == objId[i])
		{
			obj.style.display = "block";
		}
		else
		{
			tempObj = document.getElementById(objId[i]);
			tempObj.style.display = "none";	
		}
	}
	return;	
}