// TO TOGGLE DIV LAYERS
	// keepVisible: keep visible on toggle if it is already visible
	// keepHidden: keep hidden on toggle if it is already hidden
	function toggleDiv(layerid, blockStyle, keepVisible, keepHidden) {
	    if(document.layers)	{   //NN4+
	    	if(document.layers[layerid].visibility=='visible' && !keepVisible) {
		    	document.layers[layerid].visibility = "hidden";
		    	document.layers[layerid].position = "absolute";
		    } else if(!keepHidden) {
		    	document.layers[layerid].visibility = "visible";
		    	document.layers[layerid].position = "relative";
		    }
	    }
	    else if(document.getElementById) {		//gecko(NN6) + IE 5+
	        var obj1 = document.getElementById(layerid);
	    	if(obj1.style.visibility=='visible' && !keepVisible) {
		    	obj1.style.visibility = "hidden";
		    	if(blockStyle==true)
			    	obj1.style.position = "absolute";
		    } else if(!keepHidden) {
		    	obj1.style.visibility = "visible";
		    	if(blockStyle==true)
			    	obj1.style.position = "relative";
		    }
	    }
	    else if(document.all) {	// IE 4
	    	if(document.all[layerid].style.visibility=='visible' && !keepVisible) {
		    	document.all[layerid].style.visibility = "hidden";
		    	document.all[layerid].style.position = "absolute";
		    } else if(!keepHidden) {
		    	document.all[layerid].style.visibility = "visible";
		    	document.all[layerid].style.position = "relative";
		    }
	    }
	}
	
	function setDivContent(layerid, txt) {
	    if(document.layers)	{   //NN4+
	    	document.layers[layerid].innerHTML = txt;
	    }
	    else if(document.getElementById) {	  //gecko(NN6) + IE 5+
	        var obj1 = document.getElementById(layerid);
	        obj1.innerHTML = txt;
	    }
	    else if(document.all) {	// IE 4
	    	document.all[layerid].innerHTML = txt;
	    }
	}
	
	function toggleCheckbox(elemid) {
        var obj2=document.getElementById(elemid);
        obj2.checked = !obj2.checked;
	}

	function setCheckBoxValue(elemid) {
        var obj=document.getElementById(elemid);
        if(obj.value=='1')
        	obj.value='0';
        else 
        	obj.value='1';
	}
	
	// TO TOGGLE FORM ELEMENTS
	function toggleAlive(elemid) {
        var obj2=document.getElementById(elemid);
        obj2.disabled=!obj2.disabled;
	}
	
	function setAlive(elemid) {
        var obj3=document.getElementById(elemid);
        obj3.disabled=false;
	}