var checkobj;

function agreesubmit(el){
	checkobj=el;
	if (document.all||document.getElementById){
		for (i=0;i<checkobj.form.length;i++){  //hunt down submit button
			var tempobj=checkobj.form.elements[i];
			if(tempobj.type.toLowerCase()=="button")
				tempobj.disabled=!checkobj.checked;
		}
	}
}

function defaultagree(el){
	if (!document.all&&!document.getElementById){
		if (window.checkobj&&checkobj.checked)
			return true;
		else{
			alert("Please read/accept license to continue installation");
			return false;
		}
	}
}