function renderPositions() {

       var contentleft;
       if (document.getElementById('contentleft') != null) {
           contentleft = document.getElementById('contentleft');
       } else if (document.getElementById("contentleft3-4") != null) {
           contentleft = document.getElementById('contentleft3-4');
       } else if (document.getElementById("contentleft2-3") != null) {
           contentleft = document.getElementById('contentleft2-3');
       } else if (document.getElementById('contentfull') != null) {
           contentleft = document.getElementById('contentfull');
       } else {
           contentleft = null;
           alert("Page-error: No left-content specified. ");
       }

       var contentright;
       if (document.getElementById('contentright') != null) {
           contentright = document.getElementById('contentright');
       } else if (document.getElementById('contentright1-4') != null) {
           contentright = document.getElementById('contentright1-4');
       } else if (document.getElementById('contentright1-3') != null) {
           contentright = document.getElementById('contentright1-3');
       } else {
           contentright = null;
       }

	/* 1) Setting relative top-placement of "content" div. */
   	if (document.body.clientHeight>167) {
		document.getElementById('content').style.height=document.body.clientHeight-188;
               if (document.body.clientHeight>203) {
		    contentleft.style.height=document.body.clientHeight-202;
                   if (contentright != null) {
		        contentright.style.height=contentleft.offsetHeight;
                   }
               } else {
		    contentleft.style.height=document.body.clientHeight-167;
                   if (contentright != null) {
		        contentright.style.height=document.body.clientHeight-167;
                   }
               }
   	} else {
		document.getElementById('content').style.height=1;
		contentleft.style.height=1;
               if (contentright != null) {
                   contentright.style.height=1;
               }
	}
	
	/* 2) Placing bott_menu at bottom */
//   	document.getElementById('bott_menu').style.top=document.body.clientHeight-22;
   	document.getElementById('bott_menu').style.top=document.body.clientHeight-36;

	/* 3) Setting alignment for the divs. All divs are centered if client area is greater than 769, else left-aligned */
	if (document.body.clientWidth > 769) { //center aligning divs
	 	document.getElementById('container_menus').style.left=(document.body.clientWidth-769)/2;
    	document.getElementById('imagearea').style.left=(document.body.clientWidth-769)/2;
    	document.getElementById('print').style.left=(document.body.clientWidth-769)/2;
    	document.getElementById('content').style.left=(document.body.clientWidth-769)/2;
    	document.getElementById('bott_menu').style.left=(document.body.clientWidth-769)/2;
	} else { //left aligning divs
	 	document.getElementById('container_menus').style.left=0;
    	document.getElementById('imagearea').style.left=0;
    	document.getElementById('print').style.left=0;
    	document.getElementById('content').style.left=0;
    	document.getElementById('bott_menu').style.left=0;
	}
}