for(y=1;y<7;y++) { //length of col + 1
	document.write("<tr>")
	for(x=1;x<8;x++) { //length of row + 1
		feld=x+(y-1)*7; //7 length of row
		document.write("<td width=80>")
		document.write("<a href='javascript:void()' onclick='clickon("+feld+");return false'>")
		document.write("<img src='images/0.jpg' height=80 width=80 border=0 name='p"+feld+"'>")
		document.write("</a>")
		document.write("</td>")
	}
	document.write("</tr>")
}